The correct answer is option 3, Rajasthan. The Nuclear Power Station Rawatbhata is located in the state of Rajasthan. A nuclear power station is a facility where nuclear energy is used to generate electricity. These power stations contain nuclear reactors, which are devices that initiate and control nuclear reactions to release a large amount of heat. This heat is then used to produce steam, which drives turbines connected to generators to generate electricity. Rawatbhata is one of the important nuclear power stations in India and is situated in the Kota district of Rajasthan. It is operated by the Nuclear Power Corporation of India Limited (NPCIL). It consists of several reactors, including units 3 and 4 which are pressurized heavy water reactors (PHWRs) with a capacity of 220 MW each. The Rawatbhata Nuclear Power Station is a significant source of electricity for the state of Rajasthan and plays an important role in meeting the energy demands of the region.