On which river is the Rajghat power project being built ........

Explanation:

The Betwa or Betravati is a river in Northern India, and a tributary of the Yamuna. It rises in the Vindhya Range (Raisen) just north of Hoshangabad in Madhya Pradesh and flows north-east through Madhya Pradesh and Orchha to Uttar Pradesh. Nearly half of its course, which is not navigable, runs over the Malwa Plateau. The confluence of the Betwa and the Yamuna rivers is Hamirpur district in Uttar Pradesh, in the vicinity of Orchha.

The Indian navy named one of its frigates INS Betwa in honour of the river Betwa