(d) The Barabar Caves are the oldest surviving rock-cut caves in India, mostly dating from the Maurya Empire (322 BCE–185BCE), some with Ashokan inscriptions, in Gaya, Bihar. The Barabar Hill contains four caves,namely Karan Chaupar, Lomas Rishi, Sudama and Visva Zopri. The caves were used by ascetics from the Ajivika sect, founded by Makkali Gosala, a contemporary of Gautama Buddha, the founder of Buddhism, and of Mahavira, the last and Tirthankara of Jainism.