 After Canadian withdrawal from project, research, design and development work in Bhabha Atomic Research Centre and Nuclear Power Corporation of India (NPCIL) along with some industry partners who did the manufacturing and construction work enabled India in establishing this technology in totality.Over four decades, 15 220 MW reactors of indigenous design were built.Improvements were made in the original CANDU design to reduce construction time and cost, new safety systems were incorporated and thus reliability was enhanced leading to better capacity factors.