Prime Minister Narendra Modi on Monday laid the foundation stone of the 600MW Kholongchu Hydro- electric project, a joint venture between India and Bhutan.

The project's foundation stone was laid by Modi electronically from the courtyard of Bhutan's Parliament building after addressing a joint session.

Three Hydro-electric projects (HEPs) totalling 1416 MW (Chukha, Tala and Kurichu) are already operational.

Three more HEPs [Punatsangchu I (1200 MW), Punatsangchu II (1020 MW) and Mangdechu (720 MW)] are under construction.

They are scheduled to be commissioned in 2017-18.In April, 2014, the two countries had signed a framework agreement on four more JV-model HEPs totalling 2120MW.