Sure, here is a list of Prime Ministers of India up until my knowledge cutoff date in September 2021:
1. Jawaharlal Nehru (1947-1964)
2. Gulzarilal Nanda (acting, 1964)
3. Lal Bahadur Shastri (1964-1966)
4. Gulzarilal Nanda (acting, 1966)
5. Indira Gandhi (1966-1977)
6. Morarji Desai (1977-1979)
7. Charan Singh (1979-1980)
8. Indira Gandhi (1980-1984)
9. Rajiv Gandhi (1984-1989)
10. Vishwanath Pratap Singh (1989-1990)
11. Chandra Shekhar (1990-1991)
12. P. V. Narasimha Rao (1991-1996)
13. Atal Bihari Vajpayee (1996, 1998-2004)
14. H. D. Deve Gowda (1996-1997)
15. Inder Kumar Gujral (1997-1998)
16. Manmohan Singh (2004-2014)
17. Narendra Modi (2014-present, as of September 2023)
Please note that this information might be outdated if there have been any changes in leadership after September 2023.