Mir Alam Tank, also known as 'Mir Sagar', is a large lake situated adjacent to Nehru Zoological Park
, in Hyderabad
. Completed in 1806, it was once the major source of water supply in the city.
Named after Mir Alam (Prime Minister of Hyderabad from 1804-1808), the tank is noted for its construction characterized by a mile-long bund formed by 21 arches. Boating facilities are available.