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 Flood is 850 Cumecs
Design discharge is 24.16 Cumecs


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

 920 17’17.40”E, 2712’40.75”N


24 MW (3 x 8 MW )

Scheme Components

Trench Weir, Spill way, Feeder Channel, Feeder Channel, Desilting Tank,  Head Race Tunnel, Adits, RCC Rectangular Conduit, Forbay, Pen Stock, Power House, Tail Race Tunnel & Channel, Horizontal Axis Francis Turbines Coupled with Synchronous Generator, Switch Yard and other controlling accessories.

Hydraulic Turbines

Type : Horizontal Francis
Rated Net Head : 113.53 M

Design Discharge - 24.16 cumec

Expected Generation

About 94.61 MU of Clean Power in 90% dependable year.

Project Outlay

About Rs.320.35 Cr excluding Power Evacuation

Power evacuation

32 km of 132 KV line to take LILO connection on existing 132 KV Balipara- 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'19