The death of a second Dalit woman in a few days after an alleged gang rape has shocked and angered India.
The 22-year-old was dragged into a vehicle after going to apply for admission at a local school and raped, her mother told the BBC.
The news follows the death of another Dalit woman, 19, on Tuesday after an alleged gang rape by upper-caste men.
Dalits are at the bottom of the caste system. Despite laws to protect them, they face widespread discrimination.
Both attacks took place in the northern state of Uttar Pradesh. News of the first sparked protests in the streets in the state.
Police have registered complaints of rape and murder and arrested two men in connection with the latest case, which took place in Balrampur district.