Amola Devi had never been to school, had never seen the inside of a bank and is a musahar, or rat-catcher, a Dalit caste so low and marginalised that the Bihar government puts it in a special category known as mahadalit.
Ten years ago at her home in the village of Zindapur in this southern district of Bihar, two of her eight children fell ill and died because she could not afford medical care. On a good day, her husband, a rickshaw puller, earned Rs 200, of which Rs 100 went to the rickshaw owner. She had