On 29th June 2021, The Russian Federation started construction of 5th nuclear power unit at Kudankulam in Tamil Nadu.

  • This development is a significant step in bilateral relation between the countries.
  • Russian Nuclear power company “Rosatom” is providing technology to construct the Kudankulam plant.
  • This plant has 6 units each having 1,000 MWe generation capacity.
  • It is going to be India’s first light water reactor.


Both India and Russia started talk for constructing two units of nuclear plant at same site under the General Framework Agreement (signed in June 2017), for units five and six. Unit one and two of kudankulam plant are already operational.

Kudankulam Nuclear Power Plant

The largest nuclear power of India “Kudankulam Nuclear Power Plant” is located in Kudankulam town in Tirunelveli district of Tamil Nadu. Construction of the plant started on 31st March 2002. However, it faced several delays because of opposition from local fishermen.

6 reactors of KKNPP

Kudankulam Nuclear Power Plant is scheduled to have 6 VVER-1000 reactors. All these reactors have been built or is being built in collaboration with Russian state company and Nuclear Power Corporation of India Ltd. Reactors have the installed capacity of 6,000 MW of electricity. Unit one was made operation and synchronised with southern power grid in October 2013. It has been generating electricity up to 1,000 MW. Unit two was synchronised with electricity grid on August 29, 2016. Units three & four was inaugurated on 17th February 2016. Now, construction of Unit five  & six will start.

Russia starts construction of 5th Nuclear Power Unit at Kudankulam Russia starts construction of 5th Nuclear Power Unit at Kudankulam