Baolis were used to store water and then the water was taken to the farms for irrigation
the baolis were usually filled by rainwater also insuring rain water harvesting
the archeological surevy of india is restoring baolis as they were considered important in the ancient times
Baolis are wells or ponds in which the water may be reached by descending a set of steps. They may be covered and protected and are often of architectural significance.
They are most common in western india. They may be also found in the other more arid regions of south asia, extending into pakistan