Giri River, also known as Giriganga, is a main tributary of the
Yamuna River. It originates from the Kupar peak just above
Jubbal town after flowing through the heart of Shimla hills in
Himachal Pradesh. The river then flows down in the south-east direction and divides the
Sirmaur District into equal parts known as Cis-Giri and Trans-Giri region. The water from this river is led to the powerhouse of Giri Nagar and from there it is led into the
Bata River.
