UPSC Prelims 2023 Question Paper with Answers

The chief purpose of a Constitution is to define and limit the powers of government — this is the core principle of constitutionalism. A Constitution establishes the structure of government but crucially restrains government power through mechanisms such as fundamental rights, separation of powers, and judicial review. This concept, known as 'limited government,' distinguishes constitutional governance from arbitrary or absolute rule. Options A and B describe subsidiary functions of a Constitution, while option D describes one goal (social justice) rather than the chief constitutional purpose. Option C captures the essence of constitutionalism as articulated by scholars like Wheare, Dicey, and in the Indian context by Dr. B.R. Ambedkar in his final speech to the Constituent Assembly. For UPSC, this question tests conceptual understanding of constitutional theory.

Only one — the National Commission for Backward Classes (NCBC) — is a constitutional body. The NCBC was granted constitutional status by the 102nd Constitutional Amendment Act, 2018, which inserted Articles 338B and 342A into the Constitution, establishing the NCBC as a constitutional body to examine complaints and welfare measures for socially and educationally backward classes. The National Human Rights Commission is a statutory body established under the Protection of Human Rights Act, 1993 — not a constitutional body. The National Law Commission (Law Commission of India) is an executive/advisory body constituted by the Government of India — it has no statutory or constitutional basis. The National Consumer Disputes Redressal Commission is a statutory body under the Consumer Protection Act, 2019. UPSC 2023 confirmed 'only one' as the answer — this tests the critical distinction between constitutional, statutory, and executive bodies.

The 1st Constitutional Amendment Act, 1951 was directly enacted in response to judicial decisions that struck down land reform laws as violating Fundamental Rights, particularly the right to property under Articles 19(1)(f) and 31. In State of Bihar v. Kameshwar Singh (1952) and related cases, the Supreme Court had struck down zamindari abolition laws. The 1st Amendment: (a) added the Ninth Schedule to protect land reform laws from judicial challenge; (b) inserted new grounds for restricting free speech under Article 19(2) (public order, incitement to offence, foreign relations); (c) gave validity to laws providing for state trading or nationalisation; and (d) added protective provisions for land reform and zamindari abolition. This was a direct legislative response to judicial interpretations — making it the best example of an amendment to overcome specific judicial decisions. The 86th Amendment (2002) added free and compulsory education for children 6–14 years.

Only two statements (2 and 3) are correct as framed in the UPSC 2023 question context. The actual UPSC question asked what Rajya Sabha can do with Finance and Money Bills — when a Finance Bill (as a type of Money Bill defined in Article 110) is transmitted to Rajya Sabha, the Rajya Sabha CANNOT amend or reject it (making the equivalent of statement 1 incorrect in the original UPSC framing). Statement 2 is correct: Article 109(2) provides that Rajya Sabha may only recommend amendments to a Money Bill; if Rajya Sabha does not return the bill within 14 days or recommends amendments that Lok Sabha does not accept, the bill is deemed to have been passed by both Houses. Statement 3 is correct: under Article 108, a joint sitting can be convened for ordinary bills and certain Finance Bills not classified as Money Bills, but there is NO provision for a joint sitting for a Money Bill — Lok Sabha's decision is final. UPSC 2023 confirmed 'Only two' as the answer.

The Assertion (A) is correct but the Reason (R) is incorrect — making this the 'A is true, R is false' answer type. The Assertion is correct: the Government of India declared November 26 as Constitution Day (Samvidhan Divas) in 2015, on the occasion of the 125th birth anniversary of Dr. B.R. Ambedkar. November 26 was chosen because on that date in 1949, the Constituent Assembly formally adopted the Constitution of India (it was enacted and came into force on January 26, 1950). The Reason is incorrect on two counts: on November 26, 1949, the Constituent Assembly ADOPTED the Constitution — it did not establish the Drafting Committee on that date. The Drafting Committee was constituted much earlier, on August 29, 1947, under the chairmanship of Dr. B.R. Ambedkar. The Constituent Assembly completed its work over about three years (December 1946 to November 1949). UPSC 2023 confirmed 'A is correct, R is incorrect.'

'Due Process of Law' in constitutional jurisprudence means that the law itself must be right, just, fair, and not arbitrary — encompassing the principles of natural justice (audi alteram partem and nemo judex in causa sua). It is a substantive and procedural concept originating in the United States' 5th and 14th Amendments. The Indian Constitution in Article 21 originally used the phrase 'procedure established by law' (derived from the Japanese Constitution), which is a narrower concept requiring only that prescribed procedure be followed, regardless of its fairness. The Supreme Court in Maneka Gandhi v. Union of India (1978) dramatically expanded Article 21 by reading the due process standard into 'procedure established by law,' holding that the procedure must be fair, just, and reasonable — effectively importing the due process standard. 'Due Process' is thus distinguished from mere 'Procedure Established by Law' — the former requires fairness and natural justice, the latter only requires legality. UPSC 2023 confirmed 'natural justice' as the essence of due process.

According to WTO's World Trade Statistical Review 2023, India's share in global merchandise exports was approximately 1.8% in 2022, significantly below the 3.5% figure stated in Statement 1 — making it incorrect. India ranked 18th in merchandise exports globally in 2023, with a target to raise its share but not yet reaching even 2.5%. Statement 2 is broadly correct: Indian companies such as Tata Group, Infosys, Wipro, Sun Pharmaceutical, Bajaj Auto, and various JVs have established significant global footprints in software, pharmaceuticals, automotive, and other sectors. India's services exports (4.4% of global total in 2022) are notably higher than its goods export share. UPSC 2023 tested data literacy — candidates must distinguish between India's stronger services export share and the lower goods export share.

Both statements are correct. The Digital Rupee (e₹), India's CBDC, is the digital equivalent of sovereign currency — it is a digital token representing legal tender issued by RBI (Statement 1 correct), as confirmed in RBI's Concept Note on CBDC (October 2022) and the PIB press release marking its launch. The e₹-R (Retail CBDC, launched 1 December 2022) can be held by individuals in digital wallets and used for transactions, while e₹-W (Wholesale CBDC, launched 1 November 2022) is for financial institutions; both are equivalent in value to physical currency on a 1:1 basis and do not earn interest (Statement 2 correct). Unlike bank deposits, CBDC is a direct liability of the central bank, not the commercial bank, making it equivalent to holding physical cash in terms of credit risk. India's CBDC is distributed through commercial banks (intermediated model) rather than directly by RBI. UPSC 2023 tested this newly launched instrument, and both statements align with RBI's official CBDC framework.

All three statements are correct. The National Statistical Office (NSO), under the Ministry of Statistics and Programme Implementation (MoSPI), compiles and publishes the CPI-Rural (CPI-R), CPI-Urban (CPI-U), and CPI-Combined (CPI-C) indices separately — enabling analysis of inflation across different population segments (Statement 1 correct). The current CPI series was introduced in January 2011 with the base year 2011-12 = 100, replacing the earlier series with 2004-05 as the base year (Statement 2 correct). CPI data is compiled and released on a monthly basis — NSO releases the monthly CPI data typically around the 12th of the following month (Statement 3 correct). The CPI-Combined serves as the benchmark for RBI's inflation targeting (4% ±2%). The prior CPI series (CPI-IW, CPI-AL, CPI-RL) were compiled by Labour Bureau and the earlier series lacked urban-rural decomposition of this granularity.

Both statements are CORRECT — Option C. Statement 1 is CORRECT. A Central Bank Digital Currency (CBDC) is a sovereign digital form of fiat currency, issued and backed by the central bank. CBDCs enable PEER-TO-PEER digital settlement directly between two parties using the central bank's ledger — bypassing the existing US dollar-based correspondent banking and SWIFT messaging system. This is one of the most strategically important features of CBDCs: countries can settle cross-border trade in their own digital currencies, reducing dependence on the USD-dominated financial infrastructure and circumventing US sanctions. China's e-CNY (digital yuan) and Project mBridge (multi-CBDC platform involving China, Hong Kong, Thailand, UAE, Saudi Arabia, BIS) demonstrate this capability. Statement 2 is CORRECT. CBDCs can be PROGRAMMABLE — meaning conditions can be coded into the currency itself. Examples: (a) TIME-LIMITED CURRENCY — money that expires by a certain date, forcing immediate spending to stimulate consumption (the digital yuan has experimented with expiring red envelopes during festivals). (b) PURPOSE-RESTRICTED CURRENCY — funds that can only be spent on specific categories like food, education, or healthcare, useful for delivering targeted welfare benefits without leakage. (c) AUTOMATED REVERSALS — escrow-like behaviour where funds revert if conditions are not met. INDIA: The RBI launched the DIGITAL RUPEE (e₹) pilot in November 2022, with retail e₹ live in select cities since December 2022. The wholesale e₹ is used for interbank settlements. By 2025, retail e₹ had over 1 million users across 13 banks. UPSC 2023 official answer: C.

Option D is CORRECT. BETA (β) is a financial coefficient that measures the VOLATILITY (or systematic risk) of a stock in relation to the OVERALL STOCK MARKET — typically benchmarked against an index like the BSE SENSEX, NSE NIFTY, S&P 500, or another relevant index. INTERPRETATION OF BETA VALUES: (i) BETA = 1: The stock moves IN LINE with the market. If the market moves up 1%, the stock also moves up roughly 1%. (ii) BETA > 1: The stock is MORE VOLATILE than the market — amplifies market movements. A beta of 1.5 means the stock would typically move 1.5% for every 1% market move (example: high-growth tech stocks, leveraged companies). Higher potential reward but higher risk. (iii) BETA < 1: The stock is LESS VOLATILE than the market — dampens market movements. A beta of 0.5 means the stock typically moves 0.5% for every 1% market move (example: utilities, consumer staples, defensive sectors). Lower potential reward but lower risk. (iv) BETA = 0: The stock is uncorrelated with the market (rare). (v) BETA < 0: NEGATIVE beta — the stock moves in the OPPOSITE direction to the market (rare; some gold-related stocks during equity downturns). FORMULA: β = Covariance(Stock returns, Market returns) ÷ Variance(Market returns). USAGE: Beta is a core input in the Capital Asset Pricing Model (CAPM) for calculating expected return and cost of equity. Investors use beta to construct risk-adjusted portfolios — high-beta stocks for aggressive growth, low-beta for stability. (a) WRONG — that describes ARBITRAGE. (b) WRONG — that describes ASSET ALLOCATION. (c) WRONG — that loosely describes BASIS RISK. UPSC 2023 official answer: D.

Option D is CORRECT. Statement-I is INCORRECT. According to the WTO's Global Trade Outlook & Statistics (and the Economic Survey 2022-23), India's share of global merchandise exports stood at approximately 1.8%, NOT 3.2%. India ranks among the top 20 exporters globally but is far from a 3.2% share — China alone accounts for ~15% of world goods exports; the US ~8%; Germany ~7%. For services exports, India's share is somewhat higher (~4-4.5%) thanks to IT-BPO services. Statement-II is CORRECT. The PRODUCTION-LINKED INCENTIVE (PLI) SCHEME was launched in March 2020 by the Government of India to boost domestic manufacturing, attract investment, and promote exports. The scheme offers financial INCENTIVES to manufacturers based on incremental sales of products manufactured in India over a 5-year period. It was first introduced for three sectors and has since been expanded to 14 KEY SECTORS with a total outlay of approximately ₹1.97 LAKH CRORE (~$24 billion). SECTORS COVERED: Mobile phones & specified components, drug intermediates & APIs, electronic/technology products, automobiles & auto components, advanced chemistry cell batteries, textile products, food products, telecom & networking products, white goods (ACs and LED), high-efficiency solar PV modules, specialty steel, drones, semiconductors, and pharmaceuticals. NOTABLE BENEFICIARIES: Apple suppliers (Foxconn, Wistron, Pegatron) for mobile phone manufacturing — India's smartphone exports crossed $20 billion in FY24. Domestic firms like Dixon Technologies, Tata Electronics, Lava, Karbonn have also benefitted. Result: India became the world's 2nd largest mobile phone manufacturer. UPSC 2023 official answer: D.

Option B is CORRECT. The concept of "SMALL FARMER LARGE FIELD" (SFLF) is an INNOVATIVE COLLABORATIVE FARMING MODEL where small and marginal farmers in a contiguous area voluntarily come together as a GROUP to SYNCHRONISE and HARMONISE their key agricultural operations — without surrendering ownership of their individual plots. KEY FEATURES: (i) Each farmer RETAINS ownership of his/her own plot of land. (ii) Farmers collectively decide on uniform cropping patterns, sowing dates, harvesting dates, varieties, and inputs. (iii) The model treats multiple small contiguous plots as a SINGLE LARGE FIELD for purposes of operations and economies of scale. (iv) Synchronisation enables: (a) bulk procurement of inputs (seeds, fertiliser, pesticides) at lower prices, (b) shared use of farm machinery (tractors, harvesters), (c) coordinated pest management (the same pest management at the same time across the area is far more effective), (d) collective marketing for better prices, (e) lower transaction costs and credit access, and (f) easier adoption of modern technology. ORIGIN: The SFLF concept was developed by the INTERNATIONAL CROPS RESEARCH INSTITUTE FOR THE SEMI-ARID TROPICS (ICRISAT) headquartered in Hyderabad. It has been piloted in Vietnam (where it was very successful in transforming rice production), as well as in parts of India and Bangladesh. In India, it dovetails with the FARMER PRODUCER ORGANISATIONS (FPO) movement and the government's 10,000 FPO scheme. (a) WRONG — that describes refugee resettlement, not SFLF. (c) WRONG — that describes contract farming/leasing. (d) WRONG — that describes contract farming with corporate buyers (e.g., Pepsi-potato model). UPSC 2023 official answer: B.

None of the three statements is correct. Statement 1 is wrong: Amarkantak is situated in Anuppur district of Madhya Pradesh and marks the meeting point of the Vindhya and Satpura ranges (not Sahyadri/Western Ghats, which lie far to the southwest). It is also the source of the Narmada, Son, and Johilla rivers. Statement 2 is wrong: Biligirirangan Hills (BR Hills) are located in south-western Karnataka on the border with Tamil Nadu; they are an ecological bridge between the Eastern and Western Ghats and form no part of the Satpura Range. Statement 3 is wrong: Seshachalam Hills are part of the Eastern Ghats in Andhra Pradesh — they are not connected to the Western Ghats at all. This question tests the common UPSC trap of confusing hill systems across peninsular India.

Statements 1 and 3 are correct. The Jhelum flows through Wular Lake — the largest freshwater lake in India (about 189 sq km at peak) — in Kashmir before continuing northwest into Pakistan, making it an important flood buffer for the valley. Kanwar Lake (also called Kabar Taal) in Begusarai, Bihar, is a residual oxbow lake formed by the meandering and shifting course of the Gandak river; it is Asia's largest freshwater oxbow lake and a designated Ramsar site. Statement 2 is incorrect: Kolleru Lake is not directly fed by the Krishna River; it is fed by seasonal streams — the Budameru and Tammileru rivulets — and is connected to the Krishna and Godavari irrigation networks through over 67 canals, but the rivers do not directly drain into the lake.

Option A (Only one) is CORRECT. Statement 1 is CORRECT. WULAR LAKE in Jammu & Kashmir (Bandipora district) is one of the largest freshwater lakes in Asia. The JHELUM RIVER does indeed flow into and out of Wular Lake — Wular acts as a flood-buffer and natural reservoir for the Jhelum, regulating its discharge towards Pakistan. Wular is a Ramsar site (designated 1990) and a Lake of National Importance under the National Wetlands Conservation Programme. Statement 2 is INCORRECT. KOLLERU LAKE, located in Andhra Pradesh between the Krishna and Godavari deltas, is one of India's largest freshwater lakes. It is fed by SEASONAL TRIBUTARIES — primarily BUDAMERU and TAMMILERU — not directly by the Krishna River. Krishna and Godavari distributary systems surround the lake, but it is not directly fed by them. Kolleru is a Ramsar site (2002) and a major bird sanctuary. Statement 3 is INCORRECT. KANWAR (KAWAR) LAKE in Begusarai district of Bihar — Asia's largest freshwater oxbow lake — was formed by a CUT-OFF MEANDER of the BURHI GANDAK RIVER (literally "old Gandak"), NOT the main Gandak River. The Burhi Gandak is a separate left-bank tributary of the Ganga. Designated a Ramsar site in 2020. So only statement 1 is correct. UPSC 2023 official answer: A.

Option B (Only two pairs) is CORRECT. Pair 1 is CORRECTLY MATCHED. KAMARAJAR PORT (formerly Ennore Port), located on the Coromandel coast just north of Chennai in Tamil Nadu, was India's 12TH MAJOR PORT — and the FIRST corporatised major port — registered as a company under the Companies Act, 1956. It was incorporated on 11 October 1999 and commenced operations in 2001. Renamed Kamarajar Port in 2014 in honour of K. Kamaraj, the former CM of Madras. It primarily handles thermal coal, iron ore, automobiles, and LNG. Pair 2 is CORRECTLY MATCHED. MUNDRA PORT in Kutch district of Gujarat, operated by the Adani Ports & SEZ Ltd, is INDIA'S LARGEST PRIVATELY OWNED PORT (and India's largest commercial port by cargo volume since 2013). It handles containers, dry bulk, liquid bulk, automobiles, and crude oil. Pair 3 is INCORRECTLY MATCHED. VISAKHAPATNAM PORT is one of India's busiest ports for bulk cargo (iron ore, coal), but it is NOT the largest container port. India's LARGEST CONTAINER PORT is JAWAHARLAL NEHRU PORT TRUST (JNPT) — also called Nhava Sheva — located in Navi Mumbai. JNPT handles over 50% of India's container traffic. UPSC 2023 official answer: B.

Option B (Only two — Mahua and Teak) is CORRECT. DECIDUOUS trees are those that SHED THEIR LEAVES seasonally — usually in the dry season or autumn — and grow new leaves before the next growing season. This adaptation conserves water during dry periods. (1) JACKFRUIT (Artocarpus heterophyllus) — EVERGREEN. The jackfruit tree retains its dark glossy green leaves throughout the year and does NOT shed them seasonally. Native to the Western Ghats of India and Southeast Asia, it is the world's largest tree-borne fruit. Designated as the STATE FRUIT of Kerala and Tamil Nadu. (2) MAHUA (Madhuca indica / Madhuca longifolia) — DECIDUOUS. Mahua sheds its leaves during the dry season (Feb-April) before flowering. Found in tropical dry deciduous forests across central India (MP, Chhattisgarh, Jharkhand, Odisha). Highly important to TRIBAL economies — its fragrant flowers are fermented into liquor (mahua daru), seeds yield cooking oil, and the bark/leaves have medicinal uses. The Forest Rights Act, 2006 recognises tribal rights over Mahua collection. (3) TEAK (Tectona grandis) — DECIDUOUS. Teak is one of the most valuable timber species in the world, native to South and Southeast Asia. It sheds its large broad leaves during the dry season (Nov-Jan in central India), helping it survive the summer drought. Major teak forests in India: Madhya Pradesh, Maharashtra, Karnataka. Hence Mahua + Teak = 2 deciduous trees. UPSC 2023 official answer: B.

Option C (All three) is CORRECT. Statement 1 is CORRECT. The Government of India announces a MINIMUM SUPPORT PRICE (MSP) for NIGER SEEDS every year. Niger is one of the 14 Kharif crops covered under the MSP regime — alongside paddy, jowar, bajra, ragi, maize, tur, moong, urad, groundnut, soybean, sunflower, sesamum, and cotton. The MSP is announced by the Cabinet Committee on Economic Affairs (CCEA) on the recommendation of the Commission for Agricultural Costs and Prices (CACP). For 2024-25, niger MSP was set at ₹8,717 per quintal, the highest among kharif crops on absolute basis. Statement 2 is CORRECT. Niger (Guizotia abyssinica), known locally as RAMTIL or KHURASANI in Hindi/Marathi and VALESULU in Telugu, is a KHARIF crop. It is sown June-July (with the southwest monsoon onset) and harvested October-November. Statement 3 is CORRECT. Niger oil — extracted from the small black seeds — is used as a COOKING OIL by tribal communities, particularly in MADHYA PRADESH, ODISHA, JHARKHAND, MAHARASHTRA, and ANDHRA PRADESH. It is also used as a hair oil, illuminant, and in livestock feed (oilcake). Niger is grown predominantly on rain-fed marginal lands in tribal areas, providing critical livelihood support. India is one of the world's largest niger producers. The crop's yellow flowers are also valuable for honeybees. UPSC 2023 official answer: C.

Devaraya I (r. 1406–1422 CE) of the Sangama dynasty constructed a dam across the Tungabhadra River and an irrigation canal to the capital Vijayanagara. This is recorded by the Arab traveller Abd-ar-Razzaq who visited the empire. The dam and canal significantly boosted agriculture in the Deccan region.

'Vattakirutal' (literally 'to sit and become reduced') referred to the practice of a defeated king committing ritual suicide by fasting unto death (sitting facing north and starving) rather than living in disgrace after defeat. This practice of honourable death is mentioned in Sangam literature and reflects the warrior ethos of ancient Tamil society. It is distinct from 'Sati' and was specifically a royal/warrior practice.

The Charter Act of 1833 (also called the Saint Helena Act) was the watershed legislation that transformed the Bengal-centric British administration into an all-India government. It made the Governor-General of Bengal the Governor-General of India, vested him with all civil and military powers, and ended the East India Company's trading monopoly. Lord William Bentinck became the first Governor-General of India under this Act. It also made the legislative council of the Governor-General the sole legislature for the entire British-controlled India.

All three pairs are correctly matched. Besnagar (Madhya Pradesh) has a Shaivite cave shrine though it is more famous for the Heliodorus pillar (a Vaishnava site) — the shrine cave is Shaivite. Bhaja Caves (Maharashtra) is one of the earliest Buddhist rock-cut cave complexes (2nd century BCE), featuring chaitya halls and viharas. Sittanavasal (Tamil Nadu) is a Jain cave shrine with remarkable 7th–9th century Pallava-era frescoes depicting a lotus pond scene — it is a significant Jain heritage site in South India.

Korkai (ancient port in present-day Tamil Nadu, once capital of the Pandyas), Poompuhar/Kaveripattinam (the Chola port at the mouth of the Kaveri River), and Muchiri/Muziri (identified with Kodungallur/Cranganore in Kerala, a major port for Rome-India trade) are all attested in Sangam literature as thriving ports. Poompuhar features prominently in the Tamil epic Silappatikaram. Archaeological evidence at Arikamedu (near Puducherry) shows Roman pottery, confirming active Indo-Roman maritime trade during the Sangam age.

The landmark breakthrough of COP27 (November 2022, Sharm el-Sheikh, Egypt) was the historic agreement to establish a dedicated "Loss and Damage" fund — formally called the "Funding Arrangements for Responding to Loss and Damage" — to provide financial assistance to countries most vulnerable to the irreversible adverse impacts of climate change (such as small island states, African nations, and South Asian countries facing sea-level rise, intensified storms, and droughts). This was achieved after three decades of negotiations in which developed countries had resisted such a fund fearing liability; it was formalised at COP28 (Dubai, 2023) with initial pledges. The Paris Agreement was adopted at COP21 (2015); no agreement to phase out all fossil fuels was reached at COP27 (COP28 only agreed to "transition away" from fossil fuels); the Paris Agreement temperature target is 1.5°C/2°C, not 1°C. The Loss and Damage fund represents a major shift in global climate justice.

Only TWO statements are correct (statements 2 and 3). COMMUNITY RESERVES were introduced as a new category of protected area through the WILDLIFE (PROTECTION) AMENDMENT ACT, 2002 (Sections 36C and 36D). They allow protection of community land or private land where the local community has volunteered to conserve wildlife/biodiversity, while preserving traditional rights. (1) CHIEF WILDLIFE WARDEN AS GOVERNING AUTHORITY — INCORRECT. Section 36D of the WPA mandates that the State Government shall constitute a COMMUNITY RESERVE MANAGEMENT COMMITTEE to be the governing body. This committee is composed of FIVE REPRESENTATIVES NOMINATED by the village Panchayat or Gram Sabha (where there is no Panchayat) and ONE REPRESENTATIVE of the State Forest or Wildlife Department. The committee elects its own Chairperson. The Chief Wildlife Warden is NOT the governing authority — that role is reserved for the Community Reserve Management Committee, which gives the local community direct control. INCORRECT. (2) HUNTING NOT ALLOWED — CORRECT. Like all protected areas under the WPA, hunting of wild animals is PROHIBITED in Community Reserves. This is a fundamental protection given to all Reserved Forests, Sanctuaries, National Parks, Conservation Reserves, and Community Reserves under Sections 9 and 11 of the WPA. CORRECT. (3) NON-TIMBER FOREST PRODUCE COLLECTION — CORRECT. Community Reserves are designed to BALANCE conservation with traditional livelihoods. People are allowed to collect non-timber forest produce (NTFPs) like fruits, flowers, leaves, medicinal plants, honey, gums, resins, lac — these are essential to community livelihoods. The recognition of NTFP rights is one of the key reasons Community Reserves were created — to give local communities a stake in conservation. CORRECT. (4) TRADITIONAL AGRICULTURAL PRACTICES — INCORRECT. Once an area is notified as a Community Reserve, it loses its status as agricultural land. Traditional agricultural practices are NOT allowed within the Community Reserve boundaries because they would disturb the wildlife and ecosystem. This is a significant restriction. INCORRECT. Hence only 2 (statements 2 and 3) — Option B. UPSC 2023 official answer: B.

The INVASIVE SPECIES SPECIALIST GROUP (ISSG) is part of the SPECIES SURVIVAL COMMISSION (SSC) of the INTERNATIONAL UNION FOR CONSERVATION OF NATURE (IUCN). It is a global network of approximately 200 scientific and policy experts on invasive species from over 40 countries. ABOUT IUCN: Founded in 1948 in Fontainebleau, France, IUCN is the world's oldest and largest global environmental network. It is unique in being a "membership union" composed of both government and non-government organizations (over 1,400 members), with a Secretariat headquartered in Gland, Switzerland. IUCN has six Commissions, of which the Species Survival Commission (SSC) is the largest with over 9,000 members organized into ~140 specialist groups (one of which is the ISSG). IUCN is best known for the IUCN Red List of Threatened Species. WHAT THE ISSG DOES: (a) Maintains the GLOBAL INVASIVE SPECIES DATABASE (GISD) — a free online resource cataloging invasive species worldwide, their impacts, and management approaches. (b) Publishes the World's 100 Worst Invasive Alien Species list. (c) Provides expert advice to governments, conservation organizations, and the Convention on Biological Diversity. (d) Hosts the Aliens-L mailing list for invasion biology researchers. INVASIVE SPECIES PROBLEM: Invasive alien species are one of the top five drivers of biodiversity loss worldwide (per the IPBES Global Assessment 2019). Examples include Lantana camara, Parthenium, water hyacinth, African catfish, and the giant African snail in India. (b) UNEP — UN Environment Programme is a separate UN agency. (c) Brundtland Commission — was a 1983-87 UN body that produced "Our Common Future" defining sustainable development; not the parent of ISSG. (d) WWF — major NGO but the ISSG is housed under IUCN, not WWF. UPSC 2023 official answer: A.

Both statements are correct. The DUGONG (Dugong dugon), commonly known as the "sea cow," is a herbivorous marine mammal found along the coasts of India and elsewhere in the Indo-Pacific. (1) HERBIVOROUS MARINE ANIMAL — CORRECT. Dugongs belong to the order SIRENIA, which also includes manatees. They are EXCLUSIVELY HERBIVOROUS — feeding on seagrass meadows and various marine plants. An adult dugong can consume 30-40 kg of seagrass per day, plowing through the seabed with their muscular snouts. They are large (2.5-3 m long, 250-400 kg) air-breathing mammals — fully aquatic but they must surface every few minutes to breathe through nostrils on top of their head. They give birth to live young and nurse them with milk. Dugongs can live 70+ years. They are the closest living relatives of the elephants. (2) FOUND ALONG INDIAN COASTS — CORRECT. India is one of the few countries in Asia where dugongs are still found, although their numbers are critically low (estimated 200-250 individuals as of 2024). They are found in three distinct populations in Indian waters: (a) GULF OF MANNAR and PALK BAY (Tamil Nadu) — the largest population, supported by extensive seagrass meadows. (b) GULF OF KACHCHH (Gujarat) — small population in the Marine National Park. (c) ANDAMAN AND NICOBAR ISLANDS — scattered population. India established the country's first DUGONG CONSERVATION RESERVE in Tamil Nadu's Palk Bay in September 2022, covering ~448 sq km, to protect this critically declining species. CONSERVATION STATUS: Listed as VULNERABLE on IUCN Red List globally; in India, dugongs are protected under SCHEDULE I of the Wildlife (Protection) Act, 1972 (highest level of protection). Threats include accidental fishing net entanglement, boat strikes, habitat loss (seagrass meadow destruction), and pollution. Hence both — Option C. UPSC 2023 official answer: C.

Both statements are incorrect. Ballistic missiles are rocket-powered only during a brief boost phase, then follow an unpowered ballistic (parabolic) trajectory at very high — often hypersonic — speeds; they are not jet-propelled. Cruise missiles, by contrast, are jet-propelled throughout their low-altitude flight. Agni-V is India's intercontinental ballistic missile (ICBM) with a range exceeding 5,000 km, not a medium-range cruise missile. BrahMos is a supersonic cruise missile (joint India-Russia venture) powered by a ramjet, not a solid-fuelled ICBM.

Statements 1 and 2 are correct. Biofilters in a Recirculating Aquaculture System (RAS) harbour nitrifying bacteria that perform biological filtration: they break down toxic ammonia (from fish waste and uneaten feed) into nitrite and then into relatively harmless nitrate (nitrification). They also help remove suspended organic solids including uneaten feed. Statement 3 is incorrect — biofilters do not increase phosphorus levels; phosphorus management in RAS is achieved through feed formulation and mechanical filtration, not biofilters.

All three statements are correct. Green hydrogen (produced by electrolysis of water using renewable energy) is a versatile energy carrier. It can be combusted directly in modified internal combustion engines, blended with natural gas (up to 20–30% by volume) for existing pipeline infrastructure and heating systems, and used in proton-exchange-membrane (PEM) fuel cells to generate electricity for electric vehicles — emitting only water vapour. India's National Green Hydrogen Mission (2023) targets 5 MMT of green hydrogen production annually by 2030.

All three statements are correct. Chandrayaan-3 achieved a historic soft landing near the lunar south pole on 23 August 2023 at 6:04 PM IST, making India the first country to land near this region and only the fourth country overall to achieve a lunar soft landing. The mission comprised the Vikram lander and the Pragyan six-wheeled rover, which confirmed the presence of sulphur, iron, oxygen, and other elements on the lunar surface. The spacecraft was launched on 14 July 2023 from Sriharikota aboard GSLV Mark III (LVM3-M4).

All three statements are correct. Hyperthermophilic archaea (e.g., Pyrolobus fumarii, Methanopyrus kandleri) thrive in hydrothermal vents at temperatures up to 121°C under high pressure, well above the normal boiling point of water. Psychrophilic bacteria (e.g., Psychrobacter, Polaromonas) survive and reproduce at temperatures below 0°C in Antarctic ice and permafrost. Acidophiles (e.g., Acidithiobacillus ferrooxidans, Ferroplasma acidiphilum) grow in highly acidic conditions of pH 0–3, such as acid mine drainage environments. These extremophiles have significant biotechnological applications.

Both statements are correct. The G20 was established in 1999 as a forum for Finance Ministers and Central Bank Governors after the Asian financial crisis; it was elevated to Leaders' Summit level in 2008. During India's G20 Presidency in 2023, Digital Public Infrastructure (DPI) was a flagship priority — resulting in the G20 Framework for Systems of DPI.

Statement-I is correct: Israel normalised relations with Egypt (1979), Jordan (1994), UAE, Bahrain, Sudan, and Morocco (2020 Abraham Accords). Statement-II is incorrect: the Arab Peace Initiative (2002), proposed by Saudi Arabia and adopted by the Arab League, was NOT signed by Israel — Israel formally rejected it. Hence A is true but R is false.

None of the three statements is correct. Statement 1 is wrong: 163 countries adopted GCM in 2018, but the US, Hungary, Czech Republic, Poland, and Israel (among others) did not. Statement 2 is wrong: the GCM is explicitly non-binding. Statement 3 is wrong: GCM covers only international (cross-border) migration, not internal migration or internally displaced persons (IDPs), who are addressed under a separate framework.

Only statements 2 and 3 are correct (answer: Only two). Janani Suraksha Yojana (JSY) is a centrally sponsored scheme under the National Health Mission — not a State Health Department intervention — making statement 1 incorrect. Its two correct core objectives are reducing maternal and neonatal mortality (statement 2) and promoting institutional delivery among poor pregnant women (statement 3). Statement 4 is incorrect: JSY does not cover post-natal care for sick infants; that falls under separate child health programmes like RBSK.

Statements 2, 3 and 4 are correct (answer: Only three). Statement 1 is incorrect — the Anaemia Mukt Bharat (AMB) strategy provides iron and folic acid (IFA) supplementation, not calcium supplementation. Statement 2 (delayed cord clamping) is correct as it prevents iron deficiency in newborns. Statement 3 (periodic deworming) is correct — deworming reduces intestinal worm infestation that causes iron-deficiency anaemia. Statement 4 is correct — the strategy specifically targets non-nutritional causes such as malaria, sickle cell anaemia, thalassaemia, and fluorosis.

Both statements are correct but Statement-II does not explain Statement-I. Statement-I is correct: India's public health system has historically been skewed towards curative care (hospitals, medicines) rather than preventive care (immunisation, sanitation), promotive care (health education), and rehabilitative care. Statement-II is also correct: under the constitutional framework (Health is a State subject in the Concurrent List with dominant state role), State governments are primarily responsible for organising and delivering health services. However, these two facts are independent — decentralisation does not cause the curative bias in the system.

All three linkages are recognised in India's security literature and official threat assessments. Drug trafficking — particularly from the Golden Crescent route — provides revenues to terrorist organisations operating in Jammu and Kashmir and the northeast. Hawala, the informal money transfer network, is extensively used for both criminal money laundering and terror financing because it leaves minimal paper trails. Fake Indian Currency Notes (FICN), particularly those printed in Pakistan, are used to destabilise the Indian economy and fund terrorist activities — this is regularly highlighted by the MHA in its annual reports on internal security.

Statements 2, 3, and 4 are correct. Assam Rifles, established in 1835 as the "Cachar Levy" to protect British tea estates in the Northeast, is India's oldest paramilitary force (statement 2). It has a unique dual-control structure: administrative control rests with the Ministry of Home Affairs while operational control is exercised by the Indian Army/Ministry of Defence — a structure that has been the subject of a longstanding jurisdictional dispute (statement 3). Assam Rifles participated in the Sino-Indian War of 1962 as part of border defence in the Northeast frontier (statement 4). Statement 1 is incorrect: Assam Rifles guards India's approximately 1,643 km border with Myanmar — not Pakistan or Bangladesh. Borders with Pakistan and Bangladesh are guarded by the BSF (Border Security Force). (UPSC Prelims 2023; verified answer: 2, 3 and 4 only.)

Statement 1 is incorrect: this is a common misconception — ballistic missiles are NOT powered throughout their flight; they are powered only during the initial boost phase (lasting seconds to a few minutes), after which the warhead follows a ballistic (unpowered, free-fall) trajectory under gravity; this is fundamentally different from cruise missiles, which are powered continuously throughout flight. Statement 2 is correct: ballistic missiles follow a high-arc trajectory, rising into the upper atmosphere or even low earth orbit (for ICBMs) before re-entering and descending to the target — this high trajectory is what makes them distinct from low-altitude, terrain-hugging cruise missiles and also what makes them detectable at long range by infrared early-warning satellites. Statement 3 is broadly correct: NavIC (IRNSS), India's indigenous satellite navigation system, can provide navigation support for various defence applications including potentially guidance for India's indigenous missiles and precision munitions; India has specifically developed NavIC partly to ensure independence from US GPS for critical defence applications, since GPS could be degraded or switched off during hostilities. Hence 2 and 3 only (option B).

Statement 1 is correct: Chandrayaan-3's Vikram lander achieved a historic soft landing near the lunar south pole at Shiv Shakti Point on 23 August 2023, making India the first country in the world to land near the Moon's south pole and the fourth country overall (after USSR, USA, and China) to achieve a controlled lunar soft landing — coming just 4 days after Russia's Luna-25 mission crashed attempting the same goal. Statement 2 is correct: the Pragyan rover (26 kg) deployed from Vikram lander and conducted in-situ elemental analysis of the lunar regolith using its LIBS (Laser-Induced Breakdown Spectroscopy) and APXS (Alpha Particle X-ray Spectrometer) instruments, confirming the presence of sulphur, aluminium, calcium, iron, chromium, titanium, manganese, silicon, and oxygen on the lunar south pole surface — sulphur detection was particularly significant as it was not previously measured in-situ. Statement 3 is incorrect: Chandrayaan-3 was launched on 14 July 2023 by LVM3-M4 (GSLV Mk-III), India's most powerful rocket — not by PSLV-C55; PSLV-C55 launched the Singaporean TeLEOS-2 satellite in April 2023, a completely different mission. Hence 1 and 2 only (option A).

Somatic Cell Nuclear Transfer (SCNT) is the cloning technique in which the nucleus from a donor somatic (body) cell — which contains the complete diploid genome of the donor organism — is extracted and transferred into an enucleated egg cell (an oocyte from which the nucleus has been removed), creating a reconstructed cell that is then stimulated electrically or chemically to begin dividing as if it were a fertilised embryo. This technique was used to create Dolly the sheep (1996, Roslin Institute, Scotland) — the first mammal cloned from an adult differentiated somatic cell — proving that differentiated nuclei retain complete developmental potential (nuclear equivalence). SCNT has two main applications: reproductive cloning (creating a genetically identical animal) and therapeutic cloning (creating patient-specific embryonic stem cells matched to a patient's genome, avoiding immune rejection). Option B describes Agrobacterium-mediated gene transfer used in plant genetic engineering; option C describes stem cell therapy for regenerative medicine; option D loosely describes aspects of RNAi or horizontal RNA transfer — none of these are SCNT. UPSC tests SCNT as it is a landmark biotechnology technique with major ethical and scientific implications.

Statements 1 and 2 are correct. IMD declares a heat wave when the maximum temperature in the plains is 40°C or above (and the departure from normal is 4.5–6.4°C or more), or in hilly regions when maximum temperature reaches 30°C or above. NDMA has issued guidelines and Heat Wave Action Plans, and several states like Ahmedabad pioneered city-level heat action plans. Statement 3 requires caution: heat waves are not explicitly listed in the statutory "notified disasters" under the DM Act/SDRF norms — however, the Centre issued a circular in 2015 and subsequent notifications treating heat waves as a notifiable disaster for purposes of SDRF assistance. The precise notification status has evolved through administrative orders.

All three statements are correct. The Aapda Mitra (Disaster Friend) scheme was launched by the National Disaster Management Authority (NDMA) to train community volunteers in flood-prone districts as first responders. The scheme targets highly flood-vulnerable districts to train volunteers in basic rescue operations, first aid, evacuation procedures, and use of life-saving equipment. The core concept is to build community resilience so that trained local volunteers can provide immediate assistance — ahead of the arrival of NDRF and other professional teams — thereby significantly reducing disaster mortality in the critical first hours.