Teesta - Ministry of Power

i) Teesta Stage-I
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Preliminary Feasibility Report
Teesta (I) HE Project (4 x 80 MW)
It is proposed to divert the water of Teesta river d/s of its confluence with Chento chu
near Shacham and water of Zema Chu d/s of confluence Lhonak chu and Poke chu by
constructing diversion structures at EL ± 3230 and interconnecting tunnels discharging
the Tail water at an EL ± 2775 near the place Zema. The scheme will have installed
capacity of 320 MW.
ii) Teesta Stage-II
Under this scheme, a diversion dam of 83 m high is proposed near Bonsoi to divert the
tail water of Teesta Stage-I and the power house at Chungthang. The scheme shall
generate 330 MW.
iii) Teesta Stage-III
The schemes involve construction of Teesta River and Lachung chu near Chungthang
and a Power house near Singhik. The scheme shall have the installed capacity of 1200
MW.
iv) Teesta Stage-IV
A diversion dam is proposed just d/s of confluence of Teesta and Tolung chu near the
place called Sanklan and power house near the village Dikchu. The scheme shall have
installed capacity of 495 MW.
v) Teesta Stage-V
A diversion dam has been proposed d/s of confluence of Dikchu chu and Teesta river
and a power house near the village Sherwani. The scheme shall have installed capacity
of 510 MW. The project is under construction by NHPC in central sector.
vi)Teesta Stage-VI
Power Potential of Rangit Basin It envisages construction of a 76 m high concrete dam
near Khanitar d/s of the confluence of the Teesta and Rongni chu in East Sikkim and
the power house near the village Namthang/Tarkhola in South Sikkim with installed
capacity of 360 MW.