Nagarjunasagar is about 150 kms from Hyderabad and is the site of the largest earth fill dam in the world. It is a truly spectacular sight and when the gates of the dam are opening on a flooded Krishna river it is a sight that is not to be missed.
More information about the dam and how to get there can be got from the AP Tourism site. 8 kms from Nagarjunasagar is Ethipothala Falls which is also quite lovely.
On a recent trip to Nagarjunasagar by some of the associates from work they took the pictures attached below. The credit for these lovely pictures goes to Ravi Varma and Jitendra.