Ana Sagar Lake is an artificial lake situated in the city of Ajmer in Rajasthan state in India. It was built by Arnoraja (alias Ana), the grandfather of Prithviraj Chauhan, in 1135 -1150 AD and is named after him. The catchments were built with the help of local populace. The lake is spread over 13 Kilometers. The Baradari or pavilions were built by Shahjahan in 1637 and Daulat Bagh Gardens by Jehangir. There is a Circuit house on a hill near the lake that used to be British Residency. There is an island in the center of the lake which is accessible by boat. Boats could be hired from the east side of the Dault Bagh. There are Chowaptty and Jetty walkway next to each other and Baradari to capture the scenic of the lake. The lake is the biggest one in Ajmer, with the maximum catchments area (5 square km built up area). The maximum depth of lake is 4.4 m with storage capacity of 4.75 million cubic meter. The Rajasthan High Court has banned construction in the catchment areas of the lake basins.
Legend of Auliya Moinuddin Chishti When the Muslim saint Moinuddin Chishti arrived in Ajmer, he and his followers were banned from using water from Ana Sagar. He requested to get a cup of water that was granted. When the cup was filled the water of the lake got dried up miraculously. People requested to return the water, the saint gracefully did so. Since then Moinuddin Chishti got multitude of followers.