Phudung ( Ziding Kho) River, a tributary of Bichom river originates in glacial peaks in Sakteng region of Bhutan in higher Himalayan range at an elevation of 4500m and flows mostly in West- Easterly direction.

The catchment area at the diversion site is 423 km2.
This part of catchment is both rain fed and snow melt.
CWC discharge data available for 23 years.
Design discharge is 22.57 Cumecs


Dikshi village, Near Rupa , West kameng District , Arunachal Pradesh. Power house location

 920 19’43.86”E, 2713’19.62”N


24 MW (3 x 8 MW )

Scheme Components

Barrage, Spill way, Under Sluice, Head Regulator, Feeder Channel, Desilting Chambers Head Race Tunnel, Surge Shaft, Pen Stock, Adits, Power House, Tail Race Channel, Francis Turbines Coupled with Synchronous Generator, Switch Yard and other controlling accessories.

Hydraulic Turbines

Type : Horizontal Francis
Design Head : 124 M

FRL at Barrage Intake - 1704.00 m
Max. Tail Water Level - 1577.00 m
Minimum Tail Water Level - 1575.00 m
Design Head - 124 m
Design Discharge - 22.57 cumec

Expected Generation

 About 100 MU of Clean Power in 90% dependable year.

Project Outlay

About Rs.310 Cr including Power Evacuation

Power evacuation

32 km of 132 KV line to take LILO connection on existing 132 KV Balapara- Khuppi transmission line with a switching station near Tenga Village.

Sale of power

Entire power to be sold to Department Of Power, GOAP


About to be commissioned before March'18