The so-called “Buddhist Caves” around Uparkot are not actually caves, but three separate sites of rooms carved out of stone to be used as monks’ quarters, hence the name. They are all a little over 2000 years old, give or take a couple of centuries.
The oldest, the Khapara Kodia caves caves belong to 3rd-4th century AD and are plainest of all cave groups. These caves are along the edge of the ancient Sudarshan Lake (which no longer exists) and the northern side of Uparkot. The chambers are separated into an east-west longitudinal crest.