Prior to the 8th century this historical place was just a stone quarry. In the earthquake which took place sometime in the 9th century some natural structural change took place in the quarry. Water started accumulating in this quarry due to opening of an underground source. This accumulated water is today’s famous Rankala Lake. Towards the north side of this lake there is "Shalani Palace" and towards north-east "Padmaraje Garden" makes the scene of this lake enchanting. It is surrounded by chowpati, other gardens and pathway.