The Bua Hasan Talab is located to the east of town on Jhajjar-Delhi road near the group of 7 tombs. This tank was built in 1625 by Kalal Khan a mace bearer of Emperopr Jehangir. The tank has undergone many renovations and lost most of its original fabric. The tank is square in plan, approximately, 60 m x 70 m with steps from east, west and south side and ramp from the north side. The structure is constructed of brick and clad with stone at upper level. A small channel is located on the northeast corner and is believed to be the source of water for the tank.