Nuclear power plants in India operate 24 reactors with a total installed capacity of 8,780 MW, as per NPCIL (October 2026). They are located at 7 sites in 6 states. All are run by the Nuclear Power Corporation of India Ltd (NPCIL). RAPS-1 (100 MW, Rawatbhata) is under long-term shutdown and is not counted.
Note: The Atomic Energy Regulatory Board (AERB) sets safety rules for nuclear, radiation and industrial safety in India.
Map of Nuclear Power Plants in India
List of Nuclear Power Plants in India (24 Reactors)
| Site | Unit | Type | Capacity (MW) | Commercial Operation |
|---|---|---|---|---|
| Tarapur, Maharashtra | TAPS-1 | BWR | 160 | 28 Oct 1969 |
| TAPS-2 | BWR | 160 | 28 Oct 1969 | |
| TAPS-3 | PHWR | 540 | 18 Aug 2006 | |
| TAPS-4 | PHWR | 540 | 12 Sep 2005 | |
| Rawatbhata, Rajasthan | RAPS-2 | PHWR | 200 | 1 Apr 1981 |
| RAPS-3 | PHWR | 220 | 1 Jun 2000 | |
| RAPS-4 | PHWR | 220 | 23 Dec 2000 | |
| RAPS-5 | PHWR | 220 | 4 Feb 2010 | |
| RAPS-6 | PHWR | 220 | 31 Mar 2010 | |
| RAPP-7 | PHWR | 700 | 15 Apr 2025 | |
| Kalpakkam, Tamil Nadu | MAPS-1 | PHWR | 220 | 27 Jan 1984 |
| MAPS-2 | PHWR | 220 | 21 Mar 1986 | |
| Narora, Uttar Pradesh | NAPS-1 | PHWR | 220 | 1 Jan 1991 |
| NAPS-2 | PHWR | 220 | 1 Jul 1992 | |
| Kakrapar, Gujarat | KAPS-1 | PHWR | 220 | 6 May 1993 |
| KAPS-2 | PHWR | 220 | 1 Sep 1995 | |
| KAPS-3 | PHWR | 700 | 30 Jun 2023 | |
| KAPS-4 | PHWR | 700 | 31 Mar 2024 | |
| Kaiga, Karnataka | KGS-1 | PHWR | 220 | 16 Nov 2000 |
| KGS-2 | PHWR | 220 | 16 Mar 2000 | |
| KGS-3 | PHWR | 220 | 6 May 2007 | |
| KGS-4 | PHWR | 220 | 20 Jan 2011 | |
| Kudankulam, Tamil Nadu | KKNPS-1 | PWR (VVER) | 1000 | 31 Dec 2014 |
| KKNPS-2 | PWR (VVER) | 1000 | 31 Mar 2017 |
Site-wise Summary of Nuclear Power Plants in India
| Site | State | Reactors | Capacity (MW) |
|---|---|---|---|
| Tarapur | Maharashtra | 4 | 1400 |
| Rawatbhata (RAPS/RAPP) | Rajasthan | 6 | 1780 |
| Kalpakkam (MAPS) | Tamil Nadu | 2 | 440 |
| Kudankulam (KKNPS) | Tamil Nadu | 2 | 2000 |
| Narora (NAPS) | Uttar Pradesh | 2 | 440 |
| Kakrapar (KAPS) | Gujarat | 4 | 1840 |
| Kaiga (KGS) | Karnataka | 4 | 880 |
Key Points
- Tarapur (1969) is India’s first nuclear power station. TAPS-1 and 2 are boiling water reactors (BWR).
- Kudankulam has the largest reactors (1,000 MW each), built with Russian help. It is also the largest site by capacity (2,000 MW).
- RAPP-7 (700 MW) at Rawatbhata began commercial operation on 15 April 2025. It is the third indigenous 700 MW PHWR after KAPS-3 and KAPS-4.
- RAPP-8 (700 MW) began fuel loading on 19 September 2026 and is expected to start commercial operation in 2026-27.
- TAPS-1, TAPS-2 and MAPS-1 are counted in the 24 but are under long shutdown for refurbishment.
- Upcoming sites include Gorakhpur (Haryana), Kaiga-5 and 6, Chutka (Madhya Pradesh) and Mahi Banswara (Rajasthan).
Also Check: Major Ports in India: Map and List | Rivers of India: Map and List
External reference: NPCIL: Plants and installed capacity
FAQs
How many nuclear power reactors are operating in India?
24 reactors with 8,780 MW capacity, as per NPCIL (October 2026).
How many nuclear power plant sites are there in India?
Seven operating sites: Tarapur, Rawatbhata, Kalpakkam, Kudankulam, Narora, Kakrapar and Kaiga.
Which is the first nuclear power plant in India?
Tarapur Atomic Power Station, Maharashtra (1969).
Which is the largest nuclear power plant in India?
Kudankulam, Tamil Nadu, with 2,000 MW from two 1,000 MW reactors.
Which is the newest nuclear reactor in India?
RAPP-7 (700 MW) at Rawatbhata, Rajasthan, in commercial operation since 15 April 2025.