New Delhi, April 28 -- The Kudankulam Nuclear Power Plant Unit-3 has inched closer to commissioning with the start of 'Spillage to Open Reactor', a crucial step in preparing reactor systems, Nuclear Power Corporation of India Limited (NPCIL) said.

In a statement on Monday, NPCIL said, "A significant stride in India's journey towards energy security and sustainability! Nuclear Power Corporation of India Limited (NPCIL) has achieved a major commissioning milestone at Kudankulam Nuclear Power Project, Unit-3 with the successful commencement of 'Spillage to Open Reactor' on 25 April 2026."

The term 'Spillage to Open Reactor' refers to the use of water to flush and clean the reactor's coolant systems and pipelines in preparation for safe ope...