Note: Do not rely on this information. It is very old.
Karli, the largest temple-cave of India, and the oldest known to exist, is on the road between Bombay and Poona. It consists of a porch, and an interior composed of a nave and two aisles terminating in an apse. Over the entrance is a large window, and the nave has fifteen finely-ornamented pillars. The temple is 126 feet long, 45 feet broad, and 45 in height.