How UPSC tests this: Three question types — (1) Match the organisation to its HQ/founding year, (2) India's membership status (founding member / year of joining / non-member), (3) Current heads and recent summits. Data below is verified to May 2026 — current-affairs developments (WHO withdrawals, BRICS expansion, BIMSTEC Charter) are flagged separately.

🌐 United Nations & Specialised Agencies

OrganisationFoundedHQMembersCurrent HeadIndia's StatusKey UPSC Fact
United Nations (UN)1945
(San Francisco Charter)
New York, USA193 member states + 2 observer states (Holy See, Palestine)António Guterres, Secretary-General (2nd term; ends 31 Dec 2026)Founding member (1945); permanent UNSC seat aspirant (P5: USA, UK, France, Russia, China)P5 members have veto power in UNSC. UNGA elects non-permanent UNSC members. Guterres' term ends Dec 2026 — successor selection underway.
IMF
(International Monetary Fund)
1944
(Bretton Woods)
Washington D.C., USA191 member states (Liechtenstein became 191st member Oct 2024)Kristalina Georgieva, Managing Director (first term Oct 2019; second term from 1 Oct 2024 — reappointed Apr 2024, term runs to 2029)Founding member (1945); quota ~2.76%; 8th largest quota; voting share ~2.64%IMF deals with macroeconomic stability & BOP crises. India has NOT accepted an IMF bailout since 1991. Quota raised under 16th General Review (2023, +50% equiproportional increase).
World Bank Group1944
(Bretton Woods; IBRD operational 1946)
Washington D.C., USA5 institutions: IBRD, IDA, IFC, MIGA, ICSIDAjay Banga, President (since June 2023 — Indian-American)Member of 4 of 5 WBG institutions: IBRD ✓, IDA ✓, IFC ✓, MIGA ✓; ICSID ✗ (India has not ratified ICSID Convention — views its arbitration rules as favouring developed countries). India is the largest single borrower — ~USD 39.3 bn outstanding loans (2025)World Bank funds development projects (≠ IMF which handles macroeconomic stability). IBRD = middle-income countries; IDA = poorest countries (India graduated from IDA eligibility). UPSC trap: India is NOT a member of ICSID — the 5th WBG institution.
WTO
(World Trade Organization)
1995
(replaced GATT 1947)
Geneva, Switzerland166 membersNgozi Okonjo-Iweala, DG (2nd term from 1 Sep 2025 — first woman & first African DG)Founding member (1995); frequent party in dispute settlementWTO's Appellate Body effectively non-functional since 2019 (US blocking appointments) — major governance issue. India has used WTO dispute mechanism actively (sugar subsidies, solar panels, etc.).
WHO
(World Health Organization)
1948Geneva, Switzerland194 members (standard answer; USA exit effective 22 Jan 2026, Argentina exit effective 17 Mar 2026)Dr. Tedros Adhanom Ghebreyesus (since 2017; 2nd term till Aug 2027)Founding member (1948); active participantUSA exit effective 22 Jan 2026 (Trump EO 14155 signed 20 Jan 2025 → 1-year notice); Argentina exit effective 17 Mar 2026 (Milei announced Feb 2025). Standard prelims answer remains 194 members; use ~192 for post-Mar 2026 context.
UNESCO
(UN Educational, Scientific & Cultural Organization)
1945Paris, France194 member states (US withdrawal effective Dec 2026 — still full member until then)Khaled El-Enany, DG (since 15 Nov 2025 — first Arab DG, Egyptian)Founding member (ratified UNESCO Constitution 4 Nov 1946); India has 44 UNESCO World Heritage Sites (36 cultural + 7 natural + 1 mixed; latest: Maratha Military Landscapes inscribed July 2025); re-elected to Executive Board 2025–29UNESCO inscribes World Heritage Sites (cultural & natural) and Intangible Cultural Heritage. US withdrawal effective Dec 2026.
ILO
(International Labour Organization)
1919
(Treaty of Versailles — oldest UN specialised agency)
Geneva, Switzerland187 member statesGilbert F. Houngbo, DG (since Oct 2022 — first African DG of ILO)Founding member since 28 Jun 1919; permanent member of Governing Body since 1922ILO is tripartite — governments, employers & workers (unique structure). India has ratified 6 of 8 core conventions — has NOT ratified C87 (freedom of association) & C98 (right to organise/collective bargaining).
IAEA
(International Atomic Energy Agency)
1957Vienna, Austria181 member states (Maldives approved as newest member at 69th IAEA General Conference, Sep 2025)Rafael Grossi, DG (since Dec 2019)IAEA member; India–IAEA Safeguards Agreement in force since Aug 2008 (item-specific, not full-scope NPT safeguards)India is not a signatory to NPT; India is not a member of NSG (bid blocked by China). India has item-specific IAEA safeguards (only declared civilian facilities), not comprehensive safeguards.

🤝 Plurilateral Groupings & Regional Bodies

OrganisationFoundedHQMembersCurrent Head / ChairIndia's StatusKey UPSC Fact
BRICS2009
(first leaders' summit, Yekaterinburg; BRIC FMs met 2006)
No permanent HQ
(rotating chair)
11 full members: Original 5 (Brazil, Russia, India, China, South Africa) + Egypt, Ethiopia, Iran, UAE (Jan 2024) + Indonesia (Jan 2025) + Saudi Arabia. Partner country category also created (10 partners: Belarus, Bolivia, Cuba, Kazakhstan, Malaysia, Nigeria, Thailand, Uganda, Uzbekistan, Vietnam).India holds BRICS Chairmanship 2026 (4th time; earlier: 2012, 2016, 2021)Founding member (BRIC 2006)South Africa joined in 2011 (turning BRIC to BRICS). 2024 Kazan Summit expanded to 9+. Indonesia joined Jan 2025 as 10th full member. Saudi Arabia listed as 11th member on official BRICS 2026 India Presidency website (brics2026.gov.in), though its formal accession process remains ambiguous — for UPSC use 11 members.
SCO
(Shanghai Cooperation Organisation)
2001
(Shanghai; Shanghai Five existed from 1996)
Beijing, China (Secretariat); Tashkent (RATS — anti-terror body)10 full members: China, Russia, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, India, Pakistan, Iran (2023), Belarus (2024)Nurlan Yermekbayev (Kazakhstan), Secretary-General (Jan 2025–Dec 2027)Full member since 2017 (Astana Summit) — India and Pakistan admitted simultaneouslyRATS (Regional Anti-Terrorist Structure) is SCO's key security body. India joined same summit as Pakistan — often tested. Iran joined 2023; Belarus joined 2024.
G201999
(finance ministers); Leaders' Summits from 2008
No permanent HQ
(rotating presidency hosts)
21 members: 19 countries + EU + African Union (admitted at India's 2023 New Delhi Summit)USA holds 2026 Presidency (Miami Summit); South Africa held 2025Founding member; India held 2023 Presidency (New Delhi Summit; theme: Vasudhaiva Kutumbakam)G20 covers ~85% of world GDP and ~75% of global trade. African Union admitted at India's 2023 summit — high-yield exam fact. G20 ≠ treaty organisation — no permanent secretariat.
ASEAN
(Association of Southeast Asian Nations)
1967
(Bangkok Declaration, 8 Aug 1967)
Jakarta, Indonesia (Secretariat)11 members: Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, Philippines, Singapore, Thailand, Vietnam, Timor-Leste (admitted 26 Oct 2025 — 11th member)Dr. Kao Kim Hourn (Cambodia), Secretary-General (2023–2027)Comprehensive Strategic Partnership (CSP) since Nov 2022 (Phnom Penh Summit); Sectoral Dialogue Partner from 1992 → full Dialogue Partner from 1996 → Strategic Partner from 2012 → CSP from 2022; India is NOT a member of ASEANTimor-Leste formally admitted as 11th member at 47th ASEAN Summit (Kuala Lumpur, 26 Oct 2025) — first ASEAN expansion since Cambodia in 1999. India has ASEAN-India FTA (goods). ASEAN's founding five: Indonesia, Malaysia, Philippines, Singapore, Thailand.
Commonwealth
(of Nations)
1949
(London Declaration — modern Commonwealth)
Marlborough House, London, UK56 member statesShirley Ayorkor Botchwey (Ghana), Secretary-General (since 1 April 2025 — replaced Patricia Scotland)Founding member (1949 London Declaration); largest population contributor (~1.4 bn)Commonwealth is voluntary — operates by consensus, not binding treaty. Mozambique and Rwanda are members despite no colonial British link. Head of the Commonwealth: King Charles III.
Quad
(Quadrilateral Security Dialogue)
2007 (original, under PM Abe); revived 2017; Leaders' Summits from 2021No permanent HQ or Secretariat (informal grouping)4 members: India, USA, Japan, AustraliaNo permanent head (rotating host); Leaders' Summit held annuallyFull memberQuad is NOT a treaty-based alliance — no Article 5-style mutual defence clause. Focus: free & open Indo-Pacific, supply chain resilience, health security, climate, critical tech. China views it as "Asian NATO" — India rejects that framing.

🌏 South Asia & India's Neighbourhood

OrganisationFoundedHQMembersIndia's Status & Key Fact
NAM
(Non-Aligned Movement)
1961
(1st Summit, Belgrade, 1–6 Sep 1961)
No permanent HQ
(host country chairs)
121 member states + 17 observer statesFounding member; Nehru was one of five founders (with Tito of Yugoslavia, Nasser of Egypt, Nkrumah of Ghana, Sukarno of Indonesia). NAM principles (Panchsheel) are basis of India's foreign policy.
SAARC
(South Asian Association for Regional Cooperation)
1985
(Dhaka Charter, 8 Dec 1985)
Kathmandu, Nepal
(Secretariat since Jan 1987)
8 members: Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, Sri LankaFounding member. No summit since 2014 (18th Summit, Kathmandu). 19th summit was to be held in Pakistan (2016) but India withdrew after Uri attack — SAARC effectively stalled due to India-Pakistan tensions.
BIMSTEC
(Bay of Bengal Initiative for Multi-Sectoral Technical & Economic Cooperation)
1997
(as BIST-EC); renamed BIMSTEC 2004
Dhaka, Bangladesh
(Permanent Secretariat since 2014)
7 members: Bangladesh, Bhutan, India, Myanmar, Nepal, Sri Lanka, ThailandLeading member; contributes 32% of Secretariat budget; lead country for 4 priority sectors. BIMSTEC Charter signed Mar 2022 (5th Summit, Colombo); came into force 20 May 2024 after all ratifications (Nepal was last to ratify) — major UPSC update. India promotes BIMSTEC as alternative to stalled SAARC.

🚫 Key Organisations India is NOT a Member Of

OrganisationWhy India is Not a MemberIndia's Status
NPT (Nuclear Non-Proliferation Treaty)India considers NPT discriminatory — it recognises only 5 nuclear weapon states (P5) and requires others to give up nuclear weapons. India tested nuclear weapons in 1974 (Smiling Buddha) and 1998 (Pokhran-II) outside NPT framework.Non-signatory
NSG (Nuclear Suppliers Group)NSG requires NPT membership for full membership. India bid for membership in 2016; China blocked. However, India operates under a special waiver (2008 NSG waiver) allowing civil nuclear trade.Non-member; operates under 2008 NSG waiver
ASEANIndia is a geographically non-Southeast Asian country. India is a Dialogue Partner and Comprehensive Strategic Partner, not a member.Comprehensive Strategic Partnership (CSP) since 2022
OECD (Organisation for Economic Co-operation and Development)OECD is primarily a club of advanced/developed economies. India is a Key Partner of OECD (since 2007, alongside Brazil, China, Indonesia, South Africa) — participates in OECD bodies and surveys but has not formally applied for accession.Key Partner (since 2007); not a member, no formal accession bid filed
OPEC (Organisation of Petroleum Exporting Countries)India is a net oil importer, not an oil-exporting country. India is not eligible for membership.Not applicable (importer); India is an Associate member of IEA (full membership talks ongoing; legal barrier: IEA restricts full membership to OECD countries)

⚡ Quick Recall — HQ Mapping

CityOrganisations HQ'd Here
Geneva, SwitzerlandWHO · WTO · ILO · UNHCR · ICRC · ITU · WIPO · WMO · IOM
New York, USAUN (HQ) · UNICEF · UNDP · UN Women
Washington D.C., USAIMF · World Bank Group · IFC · OAS
Paris, FranceUNESCO · OECD · IEA
Lyon, FranceInterpol (INTERPOL General Secretariat)
Vienna, AustriaIAEA · OPEC · UNODC · OSCE · UNIDO
Rome, ItalyFAO · WFP · IFAD
Nairobi, KenyaUNEP · UN-Habitat
London, UKCommonwealth (Marlborough House) · IMO (the only UN agency HQ'd in London)
Brussels, BelgiumNATO · EU (Council, Commission) · Eurocontrol
Beijing, ChinaSCO Secretariat · AIIB
Jakarta, IndonesiaASEAN Secretariat
Kathmandu, NepalSAARC Secretariat
Dhaka, BangladeshBIMSTEC Secretariat
The Hague, NetherlandsICJ · ICC · OPCW · Eurojust

⚠️ High-Frequency Exam Traps

Trap / MCQ PointCorrect Answer
WTO replaced which organisation?GATT (General Agreement on Tariffs and Trade, 1947). WTO established 1995.
ILO is the oldest UN specialised agency?Yes — ILO was founded in 1919 (Treaty of Versailles), predating the UN itself (1945). It became a UN specialised agency in 1946.
India joined SCO in which year?2017 (Astana Summit). India and Pakistan joined simultaneously.
African Union was admitted to G20 at which summit?India's 2023 New Delhi Summit. AU became the 21st member of G20.
BIMSTEC has how many members?7: Bangladesh, Bhutan, India, Myanmar, Nepal, Sri Lanka, Thailand. (Pakistan is NOT a member — common trap.)
SAARC has how many members?8: Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, Sri Lanka.
India is a founding member of the IMF?Yes — India joined in 1945 at the inception of the Bretton Woods institutions.
Where is the IMF headquartered?Washington D.C., USA — same as World Bank. Both are Bretton Woods institutions but serve different functions.
World Bank President is always from the USA?Traditionally yes — but Ajay Banga (Indian-American) became President in June 2023. He is the first person of Indian origin to hold this role.
Does India have a veto in the UN Security Council?No. Only the P5 (USA, UK, France, Russia, China) have veto power. India is a non-permanent UNSC member (elected periodically).
NAM was founded at which conference?1st Belgrade Summit, 1–6 September 1961. The Bandung Conference (1955) was a precursor but is NOT the founding conference of NAM.
Is Quad a formal military alliance?No. Quad has no treaty basis, no permanent secretariat, no Article 5-type mutual defence clause. It is an informal security dialogue.
How many full members does BRICS have now?Original 5 (BRICS) → 4 new members joined Jan 2024 (Egypt, Ethiopia, Iran, UAE) → Indonesia joined Jan 2025 (10th full member) → Saudi Arabia listed as 11th on the official India BRICS 2026 Presidency website → now 11 full members. Additionally, 10 partner countries were admitted in 2025.
ASEAN has how many members?11 as of 26 October 2025 — Timor-Leste was formally admitted as the 11th member at the 47th ASEAN Summit in Kuala Lumpur. First ASEAN expansion since Cambodia (1999). Older sources still cite 10 members — use 11 in 2026 exams.
Exam strategy: For international organisations, UPSC tests three layers — (1) static facts (HQ, founding year, member count), (2) India's specific status (founding member vs later joiner, member vs non-member, dialogue partner vs full member), (3) current-affairs updates (new heads, new members, summits, withdrawals). Always note what India is not part of — NPT, NSG, ASEAN — as these are frequent traps.
Revision
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