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The Nizam Sagar Dam is a masonry gravity dam constructed across the Manjira River, a tributary of the Godavari River, in Sangareddy district of the Indian state of Telangana. Completed in 1931, it is one of the oldest dams in India. The dam is used for irrigation and supplies water to the Pochampad Project and the Nizamsagar Project. It also provides hydroelectric power generation, contributing to the state's electricity needs.