Built in the second century, the Mata Bhavani Vav, suggested by Hasmukh Dhirajlal Sankalia, cannot belong to the pre-Islamic time. According to the scholars, the stepwell was probably constructed during the reign of Karnadev, the Chalukya king who is credited with founding the ancient city of Karnavati. Other scholars believed that the stepwell was commissioned by Queen Minaldevi. Mata Bhavani has a double system of stairs with a square pool in front of the actual well, which is usually a part of a larger stepwell. It has three storeys and three pavilion towers.