Rihand Valley Project is located in the state of ___________.
Rihand Dam, also known as Govind Ballabh Pant Sagar, is the largest dam of India by volume. The reservoir of Rihand Dam is called Govind Ballabh Pant Sagar and is India's largest artificial lake. Rihand Dam is a concrete gravity dam located at Pipri in Sonbhadra District in Uttar Pradesh, India.