The construction of reservoir on Esi a tributary of Musi River was completed in 1927, for providing drinking water source for Hyderabad, and also saving the city from floods, which Hyderabad suffered in 1908. 22.5 kms away, runs parallel to Osman Sagar. It is a smaller tank named after Nizam VII’s eldest son, Himayat Ali Khan.
The grassy area adjoining the lake is an ideal picnic and recreation spot. The road atop the bund is popular for a good road drive. A part near the dam is green and ideal for a picnic and a small stretch of road on top of the dam can be a pleasant drive or walk.