"The processes, procedures and human performance aspects of all stations of NPCIL are being reviewed again to carry out reinforcements as appropriate," Chavan said in a suo moto statement in the Lok Sabha.
Briefing the House on the development in the incident, Chavan said that the log books, cctv footages, water sample analysis have been taken to arrive at a definite conclusion, adding that the urine samples of the employees at the location revealed higher than normal traces of tritium.
Chavan assured that there has been no radioactivity release in the environment due to the incident.
The hand of an insider is suspected behind the Kaiga episode as there was no breach of security.
Reportedly, some heavy water containing tritium was added to the drinking water cooler at the Kaiga Atomic Power Station (KAPS) in which 92 employees where exposed to radiation.