India has achieved a significant breakthrough in its nuclear energy programme as the indigenously designed Prototype Fast Breeder Reactor (PFBR) at Kalpakkam, Tamil Nadu, reached criticality.

Prime Minister Hails Achievement
Prime Minister Narendra Modi called the development a defining step in India’s civil nuclear journey, advancing the second stage of the country’s three-stage nuclear programme. He highlighted that the PFBR can produce more fuel than it consumes, underscoring India’s scientific and engineering capabilities. The milestone also moves the nation closer to utilizing its abundant thorium reserves in the third stage. PM Modi congratulated the scientists and engineers who contributed to the project.
About the PFBR
The 500 MW Prototype Fast Breeder Reactor is operated by Bharatiya Nabhikiya Vidyut Nigam Ltd (BHAVINI) and is a crucial part of India’s long-term nuclear strategy. Once fully operational, India will become only the second country after Russia to run a commercial fast breeder reactor. Criticality indicates the reactor has achieved a self-sustaining nuclear chain reaction and that the core is functioning as intended.
Indigenous Development and Self-Reliance
The PFBR project was built indigenously with contributions from over 200 Indian industries, including several MSMEs. This aligns with the government’s Aatmanirbhar Bharat initiative, reinforcing India’s push for technological self-reliance and leadership in advanced nuclear and clean energy technologies.
