India’s Native Fast Breeder Reactor Reaches First Criticality: 5 Things to Know

Apr 8, 2026 - 10:00
India’s Native Fast Breeder Reactor Reaches First Criticality: 5 Things to Know
India has reached a significant milestone in its nuclear programme. On Tuesday, the Prototype Fast Breeder Reactor (PFBR) attained first criticality, an important stage where the reactor generates more fuel than it burns. Now that the PFBR is capable of sustained nuclear chain reaction, the programme will move towards the next stage, where it will use India’s vast reserves of Thorium.