Sri Harmandir Sahib began on 6th November 1573 and was completed in 1577. The original pond was turned into a masonry structure in 1584. The foundation of Amritsar was laid by Sri Guru Ram Dasji on the land purchased during the time of the third Sikh Guru, Sri Guru Amar Das Ji.
The tank is 500 feet in length, 490 feet in width and 17 feet deep. It originally was filled only with rainwater and would dry up when rainfall was inadequate. During the British regime, in 1866, the hansali was connected with the Upper Bari Doab Canal and since then the water supply has been taken from there.
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