Osman Sagar is a reservoir in the Indian city of Hyderabad. The lake is around 46 km², and the reservoir is around 29 km², with total level of 1,790 feet and a capacity of 3.9 tmc ft.
Wikipedia https://en.wikipedia.org/wiki/Osman_Sagar
Address India
Coordinates 17°22'34.411" N 78°17'55.446" E
