Nearly 600 people died in police custody in India between 2010 and 2015, says the US-based human rights watch in a fresh report.
The rights group said no policeman was convicted for a prisoner’s death in custody during this period.
India’s Police routinely attributes deaths in custody to illness, attempted escape, suicide and accidents.
But rights groups say a large number of such deaths happen because of torture in custody.
The 114-page report examined police disregard for arrest regulations, custodial deaths from torture, and impunity for those responsible.