Constitutional Basis

Article Provision
Art. 74 Council of Ministers with PM at head to aid and advise the President; President may ask for reconsideration once but must act on re-tendered advice
Art. 75(1) PM appointed by the President; other ministers appointed on PM's advice
Art. 75(3) Council of Ministers collectively responsible to Lok Sabha
Art. 75(1A) Total ministers (including PM) shall not exceed 15% of Lok Sabha strength (added by 91st Amendment, 2003)
Art. 78 PM's duty to communicate all Cabinet decisions to the President; furnish information on request; refer individual-minister decisions to Cabinet if President requires

Exam tip: Article 74 makes ministerial advice binding on the President (after any reconsideration). Courts cannot inquire into what advice was tendered (Art. 74(2)).


Complete List of Prime Ministers of India (1947–Present)

India has had 14 individuals serve as Prime Minister. Gulzarilal Nanda served twice as interim/acting PM and is counted separately in sequential numbering, giving 15 PM tenures in total.

# Name Party Tenure (Start → End) Duration State / Constituency
1 Jawaharlal Nehru INC 15 Aug 1947 → 27 May 1964 ~16 yrs 9 mo UP — Phulpur (later Allahabad)
2 Gulzarilal Nanda (Acting) INC 27 May 1964 → 9 Jun 1964 13 days Gujarat — Sabarkantha
3 Lal Bahadur Shastri INC 9 Jun 1964 → 11 Jan 1966 ~1 yr 7 mo UP — Allahabad
4 Gulzarilal Nanda (Acting, 2nd time) INC 11 Jan 1966 → 24 Jan 1966 13 days Gujarat — Sabarkantha
5 Indira Gandhi INC 24 Jan 1966 → 24 Mar 1977 ~11 yrs 2 mo UP — Rae Bareli (later Medak)
6 Morarji Desai Janata Party 24 Mar 1977 → 28 Jul 1979 ~2 yrs 4 mo Gujarat — Surat
7 Charan Singh Janata Party (S) 28 Jul 1979 → 14 Jan 1980 ~170 days UP — Baghpat
8 Indira Gandhi (2nd term) INC 14 Jan 1980 → 31 Oct 1984 ~4 yrs 9 mo UP — Medak (Andhra Pradesh)
9 Rajiv Gandhi INC 31 Oct 1984 → 2 Dec 1989 ~5 yrs 1 mo UP — Amethi
10 V.P. Singh Janata Dal 2 Dec 1989 → 10 Nov 1990 ~11 months UP — Fatehpur
11 Chandra Shekhar Janata Dal (S) 10 Nov 1990 → 21 Jun 1991 ~7 months UP — Ballia
12 P.V. Narasimha Rao INC 21 Jun 1991 → 16 May 1996 ~4 yrs 11 mo Andhra Pradesh — Nandyal
13 Atal Bihari Vajpayee (1st term) BJP 16 May 1996 → 1 Jun 1996 13 days UP — Lucknow
14 H.D. Deve Gowda Janata Dal 1 Jun 1996 → 21 Apr 1997 ~324 days Karnataka — Hassan
15 I.K. Gujral Janata Dal 21 Apr 1997 → 19 Mar 1998 ~11 months Punjab — Jalandhar (RS)
16 Atal Bihari Vajpayee (2nd term) BJP 19 Mar 1998 → 13 Oct 1999 ~7 months UP — Lucknow
17 Atal Bihari Vajpayee (3rd term) BJP 13 Oct 1999 → 22 May 2004 ~4 yrs 7 mo UP — Lucknow
18 Manmohan Singh INC 22 May 2004 → 26 May 2014 10 yrs Assam (Rajya Sabha)
19 Narendra Modi (1st term) BJP 26 May 2014 → 30 May 2019 5 years Gujarat — Vadodara / Varanasi
20 Narendra Modi (2nd term) BJP 30 May 2019 → 9 Jun 2024 5 years UP — Varanasi
21 Narendra Modi (3rd term) BJP 9 Jun 2024 → Present Ongoing UP — Varanasi

Note on numbering: When counting individuals only, India has had 14 PMs. When counting tenures (including re-appointments and Nanda's two stints), the count rises. Most UPSC sources call Modi the 14th Prime Minister.


Key Profiles — Critical Facts for UPSC

1. Jawaharlal Nehru (1947–1964)

Fact Detail
Served as PM 15 Aug 1947 – 27 May 1964
Longest-serving PM ~16 years 9 months
Party Indian National Congress
Constituency Phulpur (1952); Allahabad (1957, 1962)
Died in office 27 May 1964 — first PM to die in office
Key policies Panchsheel (1954); Non-Alignment; Five-Year Plans; IITs established; Hindi–China Bhai Bhai → 1962 war with China
Key legislation Hindu Code Bills (1955–56); Industrial Policy Resolution 1956
Firsts First PM of independent India; First PM to die in office; Nehru-Gandhi dynasty founder

2. Gulzarilal Nanda (1964, 1966 — Acting PM)

Fact Detail
1st stint 27 May 1964 – 9 Jun 1964 (13 days) — after Nehru's death
2nd stint 11 Jan 1966 – 24 Jan 1966 (13 days) — after Shastri's death in Tashkent
Party INC
Constituency Sabarkantha, Gujarat
Shortest tenure ~13 days each time; shortest-serving PM (acting)
Note Served as Acting PM, not constitutionally designated as such — appointed as PM pending election of successor by Congress Parliamentary Party

3. Lal Bahadur Shastri (1964–1966)

Fact Detail
Served as PM 9 Jun 1964 – 11 Jan 1966
Party INC
Constituency Allahabad, UP
Died in office 11 Jan 1966 — died in Tashkent, USSR (now Uzbekistan), the day after signing the Tashkent Declaration ending the 1965 Indo-Pakistan War
Key events 1965 Indo-Pakistan War; Tashkent Agreement (signed 10 Jan 1966); Green Revolution foundation; "Jai Jawan Jai Kisan" slogan
Posthumous honour Bharat Ratna (1966) — first posthumous Bharat Ratna recipient

4. Indira Gandhi (1966–1977, 1980–1984)

Fact Detail
1st term 24 Jan 1966 – 24 Mar 1977
2nd term 14 Jan 1980 – 31 Oct 1984
Party INC
Constituency Rae Bareli (1st term); Medak, Andhra Pradesh (2nd term)
First woman PM of India Only woman PM to date
Assassinated 31 Oct 1984, at her New Delhi residence (1 Safdarjung Road) by her own bodyguards Beant Singh and Satwant Singh in retaliation for Operation Blue Star (Jun 1984)
Key events Bank nationalisation (1969); Bangladesh Liberation War (1971); Pokhran-I nuclear test (1974); Emergency (1975–77) — most controversial act; Operation Blue Star (Jun 1984) — storming of Golden Temple
Key legislation Privy Purses abolition (1971); 42nd Constitutional Amendment (1976) — "Mini Constitution"
Expulsion & return Lost 1977 election after Emergency; expelled from Congress; returned to power 1980 after Congress (I) landslide
Posthumous honour Bharat Ratna (1971, while in office — rare)

5. Morarji Desai (1977–1979)

Fact Detail
Served as PM 24 Mar 1977 – 28 Jul 1979
Party Janata Party
Constituency Surat, Gujarat
First non-Congress PM First PM from outside Indian National Congress
Born 29 Feb 1896 — oldest person to become PM (aged 81)
Resigned 28 Jul 1979 — after coalition collapse within Janata Party
Key events Revocation of Emergency; 44th Constitutional Amendment (1978) — reversed 42nd Amendment excesses; restoration of press freedom
Former role Deputy PM under Indira Gandhi (1967–69)
Honour Nishan-e-Pakistan (Pakistan's highest civilian award)

6. Charan Singh (1979–1980)

Fact Detail
Served as PM 28 Jul 1979 – 14 Jan 1980 (~170 days)
Party Janata Party (Secular) / Lok Dal
Constituency Baghpat, UP
Never faced Parliament Resigned on 20 Aug 1979 (just 23 days into tenure) after Congress withdrew support; continued as caretaker PM until 14 Jan 1980 — only PM in India's history who never addressed Parliament
Reason for fall Congress (I) demanded withdrawal of cases against Sanjay Gandhi (Emergency-era); Charan Singh refused
Key note Was Deputy PM under Morarji Desai before becoming PM
Posthumous honour Bharat Ratna (2024)

7. Rajiv Gandhi (1984–1989)

Fact Detail
Served as PM 31 Oct 1984 – 2 Dec 1989
Party INC
Constituency Amethi, UP
Youngest PM of India Took office aged 40 years
Assassinated 21 May 1991 (not while in office) — killed at Sriperumbudur, Tamil Nadu by LTTE suicide bomber Thenmozhi Rajaratnam (Dhanu) during 1991 election campaign
1984 election mandate Congress won 404 seats in Lok Sabha — largest ever mandate in Indian history (sympathy wave after Indira's assassination)
Key events Bhopal Gas Tragedy handling (Dec 1984); Anti-Sikh Riots; Punjab Accord (1985); Rajiv-Longowal Accord; Mizo Peace Accord (1986); Shah Bano case and Muslim Women Act (1986); 73rd & 74th CAAs introduced (passed 1992 under Rao); liberalisation of telecom and computers; SAARC; Bofors scandal
Posthumous honour Bharat Ratna (1991)

8. V.P. Singh (1989–1990)

Fact Detail
Served as PM 2 Dec 1989 – 10 Nov 1990
Party Janata Dal
Constituency Fatehpur, UP
Government type Minority government; supported by BJP and Left from outside
Key event Implementation of Mandal Commission recommendations (27% OBC reservation in central government jobs) — triggered nationwide agitation; L.K. Advani's Rath Yatra; government fell when BJP withdrew support

9. Chandra Shekhar (1990–1991)

Fact Detail
Served as PM 10 Nov 1990 – 21 Jun 1991
Party Janata Dal (Socialist) / Samajwadi Janata Party
Constituency Ballia, UP
Government type Minority government; outside support from Congress (I)
Resigned 6 Mar 1991 after Congress withdrew support; continued as caretaker
Key event India's BoP crisis (1991) — gold pledged to Bank of England and Bank of Japan; handed over to Rao to implement liberalisation

10. P.V. Narasimha Rao (1991–1996)

Fact Detail
Served as PM 21 Jun 1991 – 16 May 1996
Party INC
Constituency Nandyal, Andhra Pradesh
First PM from South India First non-Hindi-speaking PM
Architect of 1991 Economic Reforms New Economic Policy (LPG — Liberalisation, Privatisation, Globalisation) with FM Manmohan Singh
Key legislation 73rd & 74th Constitutional Amendments (1992) — Panchayati Raj & Urban Local Bodies; Securities Laws reform; FEMA
Other events Babri Masjid demolition (6 Dec 1992); Pokhran-related decisions; Look East Policy
Note First PM to lead a minority government to full term
Posthumous honour Bharat Ratna (2024)

11. Atal Bihari Vajpayee (1996; 1998–99; 1999–2004)

Fact Detail
1st term 16 May 1996 – 1 Jun 1996 (13 days — resigned before trust vote)
2nd term 19 Mar 1998 – 13 Oct 1999 (~7 months — fell by one vote in confidence motion, 17 Apr 1999)
3rd term 13 Oct 1999 – 22 May 2004 (~4.5 years — full NDA majority)
Party BJP
Constituency Lucknow, UP
Key events Pokhran-II nuclear tests (May 1998) — Operation Shakti; Kargil War (1999); Lahore Bus Yatra (1999); Golden Quadrilateral highway project; National Highways Development Project; National Rural Health Mission (seeds); Parliament Attack (Dec 2001); Godhra riots (2002)
Key legislation POTA (2002); Fiscal Responsibility & Budget Management Act (2003)
Honour Bharat Ratna (2015, posthumously)
Notable First PM from BJP to complete a full term (3rd term); orator and poet

12. H.D. Deve Gowda (1996–1997)

Fact Detail
Served as PM 1 Jun 1996 – 21 Apr 1997 (~324 days)
Party Janata Dal (United Front coalition)
State Karnataka — Hassan constituency
Government Minority United Front coalition; outside support from INC
Fell Congress withdrew support; replaced by Gujral
Notable First PM from Karnataka; consensus candidate of Third Front

13. I.K. Gujral (1997–1998)

Fact Detail
Served as PM 21 Apr 1997 – 19 Mar 1998 (~11 months)
Party Janata Dal
Seat Rajya Sabha (represented Punjab / Jalandhar)
Key policy Gujral Doctrine — India should give unilaterally to neighbours without reciprocity (non-reciprocal concessions to Bangladesh, Nepal, Bhutan, Sri Lanka, Maldives)
Fell Congress withdrew support citing Jain Commission report linking Janata Dal ally DMK to Rajiv Gandhi assassination

14. Manmohan Singh (2004–2014)

Fact Detail
Served as PM 22 May 2004 – 26 May 2014
Party INC (UPA coalition)
Seat Rajya Sabha from Assam — never won a Lok Sabha seat
First Sikh PM First PM from a religious minority community
Background Oxford-trained economist; as Finance Minister (1991) architected LPG reforms
Second full-term PM after Nehru First PM after Nehru to be re-elected for a consecutive term after completing 5 years (2004–09, 2009–14)
Key events Indo-US Civil Nuclear Deal (2008); MGNREGA (2005); RTI Act (2005); Food Security Act (2013); Aadhaar launch; 2G spectrum controversy; Commonwealth Games controversy; UPA-2 coalition challenges
Death Died 26 December 2024, aged 92, at AIIMS Delhi due to age-related illness

15. Narendra Modi (2014–Present)

Fact Detail
1st term 26 May 2014 – 30 May 2019
2nd term 30 May 2019 – 9 Jun 2024
3rd term 9 Jun 2024 – Present (as of April 2026)
Party BJP (NDA coalition)
Constituency Vadodara & Varanasi (2014); Varanasi (2019, 2024)
Born 17 Sep 1950, Vadnagar, Gujarat
First PM born after Independence Independence was 15 Aug 1947; Modi born Sep 1950
Second-longest serving after Nehru Surpassed Indira Gandhi's combined tenure during 3rd term
First non-Congress leader to win 3 consecutive general elections 2014, 2019, 2024
Former role Chief Minister of Gujarat (2001–2014)
Key policies Demonetisation (Nov 2016); GST (Jul 2017); Swachh Bharat Mission; Jan Dhan Yojana; Make in India; Digital India; Ayushman Bharat; Smart Cities; Article 370 abrogation (Aug 2019); CAA (Dec 2019); COVID-19 pandemic management; Ram Mandir consecration (Jan 2024); Atmanirbhar Bharat

Records and Firsts — High-Yield UPSC Facts

Record PM Detail
First PM Jawaharlal Nehru 15 Aug 1947
Longest-serving PM Jawaharlal Nehru ~16 yrs 9 mo (1947–1964)
Shortest-serving PM (individual, elected) Atal Bihari Vajpayee 13 days (May–Jun 1996, resigned before trust vote)
Shortest-serving Acting PM Gulzarilal Nanda 13 days (twice — 1964 and 1966)
First woman PM Indira Gandhi 24 Jan 1966
Youngest PM Rajiv Gandhi Took office aged 40 (31 Oct 1984)
Oldest PM Morarji Desai Took office aged 81 (24 Mar 1977) — also world record
First non-Congress PM Morarji Desai Janata Party, 1977
First PM from South India P.V. Narasimha Rao Andhra Pradesh, 1991
First Sikh PM Manmohan Singh 2004; first from any minority religion
First PM born after Independence Narendra Modi Born 17 Sep 1950
Only PM who never faced Parliament Charan Singh Resigned 23 days in; governed as caretaker for ~170 days total
PMs who died in office Nehru (1964), Shastri (1966), Indira Gandhi (1984) Three PMs died in office
PMs assassinated Indira Gandhi (1984), Rajiv Gandhi (1991) Indira while in office; Rajiv as former PM during election campaign
PM who died abroad Lal Bahadur Shastri Died in Tashkent, USSR (now Uzbekistan), 11 Jan 1966
Nehru–Gandhi dynasty PMs Nehru, Indira, Rajiv Three generations (grandfather–daughter–son)
PM never elected to Lok Sabha Manmohan Singh Served via Rajya Sabha (Assam) throughout tenure
Acting PM (only person to serve twice) Gulzarilal Nanda 1964 and 1966 — only acting PM in India's history

PMs Who Died in Office or Were Assassinated

PM Date Circumstances
Jawaharlal Nehru 27 May 1964 Died of natural causes (heart attack) in New Delhi
Lal Bahadur Shastri 11 Jan 1966 Died in Tashkent, USSR — cause disputed (likely heart attack); day after signing Tashkent Declaration
Indira Gandhi 31 Oct 1984 Assassinated at her residence, New Delhi, by bodyguards Beant Singh and Satwant Singh — retaliation for Operation Blue Star (assault on Golden Temple, Amritsar, Jun 1984)
Rajiv Gandhi 21 May 1991 Assassinated (as former PM) at Sriperumbudur, Tamil Nadu by LTTE suicide bomber Thenmozhi Rajaratnam (alias Dhanu) during 1991 general election campaign

Deputy Prime Ministers of India (Complete List)

The office of Deputy Prime Minister is not mentioned in the Constitution — it is an extra-constitutional position. There have been 7 Deputy PMs since 1947. The post has been vacant since 22 May 2004.

# Deputy PM Party PM Served Under Tenure
1 Vallabhbhai Patel INC Nehru 15 Aug 1947 – 15 Dec 1950 (died in office; longest Deputy PM)
2 Morarji Desai INC Indira Gandhi 13 Mar 1967 – 16 Jul 1969
3 Charan Singh INC/BLD Morarji Desai 24 Jan 1979 – 28 Jul 1979
4 Jagjivan Ram INC/Janata Morarji Desai 24 Jan 1979 – 28 Jul 1979
5 Y.B. Chavan INC (I) Charan Singh 28 Jul 1979 – 14 Jan 1980
6 Devi Lal Janata Dal V.P. Singh / Chandra Shekhar 2 Dec 1989 – 21 Jun 1991
7 L.K. Advani BJP Vajpayee 29 Jun 2002 – 22 May 2004

Exam trap: Both Morarji Desai and Charan Singh served as Deputy PM before becoming PM themselves. Vallabhbhai Patel was the longest-serving Deputy PM and the first. The post has been vacant since May 2004.


Nehru–Gandhi Dynasty

PM Relation Tenure
Jawaharlal Nehru — (dynasty founder) 1947–1964
Indira Gandhi Daughter of Nehru 1966–77; 1980–84
Rajiv Gandhi Son of Indira; Grandson of Nehru 1984–89

Note: Rajiv Gandhi's surname "Gandhi" is coincidental — he was not related to Mahatma Gandhi. His wife Sonia Gandhi (née Maino) is Italian-born. Son Rahul Gandhi has not become PM as of April 2026.


PMs with Notable "Firsts" in Context

PM "First"
Nehru First PM; first PM from INC; first PM to die in office
Nanda Only acting PM; only person to be PM twice without being elected PM
Shastri First PM to die abroad; Bharat Ratna posthumously
Indira Gandhi First (and only) woman PM
Morarji Desai First non-Congress PM; oldest PM; only PM to receive Nishan-e-Pakistan
Charan Singh Only PM never to face Parliament
Rajiv Gandhi Youngest PM (40 years); largest mandate in history (404 seats, 1984)
Narasimha Rao First South Indian PM; first PM from non-Hindi speaking region to complete full term; minority government to full term
Deve Gowda First PM from Karnataka
Manmohan Singh First Sikh PM; first minority-community PM; only PM from Rajya Sabha throughout; second PM after Nehru to complete consecutive terms
Narendra Modi First PM born after Independence; first non-Congress leader with 3 consecutive terms; second-longest serving PM

Exam Traps — Frequently Confused Facts

Tenure traps:

  • Nehru = longest serving (~16 yrs 9 mo); Nanda = shortest (13 days, but only acting PM)
  • Vajpayee = shortest among elected PMs with a substantive (non-interim) term (13 days, 1996 first term)
  • Charan Singh = 170 days total as PM but actually resigned after 23 days and governed as caretaker; never faced Parliament
  • Manmohan Singh's 10-year tenure (2004–2014) makes him the third-longest serving PM after Nehru and Indira Gandhi

Death/Assassination traps:

  • Shastri died in Tashkent (USSR), not in India — cause of death officially cardiac arrest, but circumstances remain disputed
  • Indira Gandhi assassinated by own bodyguards (Beant Singh and Satwant Singh), not by LTTE
  • Rajiv Gandhi assassinated by LTTE, at Sriperumbudur, Tamil Nadu, but he was not PM at the time — he was former PM and Congress candidate

Party traps:

  • Morarji Desai = Janata Party (not Congress), first non-Congress PM
  • V.P. Singh = Janata Dal; Chandra Shekhar = Janata Dal (Socialist)/Samajwadi Janata Party; Deve Gowda and Gujral = Janata Dal — all distinct factions
  • IK Gujral = Janata Dal, supported by Congress — not from Congress

Constituency traps:

  • Manmohan Singh never won a Lok Sabha seat — only PM to serve entirely from Rajya Sabha
  • Indira Gandhi's 2nd term constituency was Medak, Andhra Pradesh (not Rae Bareli; she lost Rae Bareli in 1977)
  • Nehru's first seat: Phulpur (not Allahabad — he moved to Allahabad from 1957)

Other traps:

  • Modi born 17 Sep 1950 — first PM born after Independence (15 Aug 1947). Every prior PM was born before 1947.
  • Deputy PM post: not constitutional — no Article defines it; currently vacant since 2004
  • Rajiv Gandhi ≠ relation of Mahatma Gandhi — different families entirely

Qualifications and Eligibility for PM

Requirement Detail
Must be Indian citizen
Must be member of Lok Sabha OR Rajya Sabha (can be from either house)
If not MP at time of appointment Must become MP within 6 months
Age No specific minimum age stated for PM; must be qualified for Lok Sabha membership (i.e., 25+ for LS, 30+ for RS)
Not eligible Person holding office of profit under government
Collective responsibility Council of Ministers collectively responsible to Lok Sabha only (not Rajya Sabha)

Quick Recall Mnemonic — Order of PMs

N-N-G-D-G | C-V-P-D-G | V-R-N-V | M-M

Letters PM
N Nehru
N Nanda (1st)
G Gulzarilal Nanda (note: same N — 2nd stint, listed here as "Nanda 2")
L Lal Bahadur Shastri
N Nanda (2nd stint)
I Indira Gandhi (1st term)
M Morarji Desai
C Charan Singh
I Indira Gandhi (2nd term)
R Rajiv Gandhi
V V.P. Singh
C Chandra Shekhar
N Narasimha Rao
V Vajpayee (three terms)
D Deve Gowda
G Gujral
M Manmohan Singh
N Narendra Modi

Simplified memory device for order (individual PMs only, ignoring repeat terms): Nehru → Nanda (×2, acting) → Shastri → Indira (×2) → Morarji → Charan → Rajiv → VP → ChandraShekar → Narasimha → Vajpayee → Deve Gowda → Gujral → Manmohan → Modi