To achieve the target of net-zero emissions, atomic energy will play a big part in India's energy transition strategy. In a rare access, NDTV visited the one-of-a-kind and highly guarded experimental nuclear reactor that breeds more fuel than it consumes to generate energy. Called the Fast Breeder Test Reactor, it has been the test bed for India's ambitious 500 MW Prototype Fast Breeder Reactor. Fast Breeder Reactors are one of a kind atomic reactors. Only Russia and India have operating fast-breeder reactors. Nuclear energy does not emit carbon.