The Bhagalpur blindings refers to a series of incidents in 1979 and 1980 in Bhagalpur in the state of Bihar, India when police blinded 31 undertrials (or convicted criminals, according to some versions), by pouring acid into their eyes. The incident became infamous as Bhagalpur blindings. The incident was widely discussed,debated and acutely criticised by several human rights organisations.
In 2003, a Bollywood movie loosely based on the incident and starring Ajay Devgn was released. It was titled Gangaajal (roughly translated as The holy waters of the Ganges).