India Tuesday expressed outrage over an interview by a British filmmaker of one of the rapists in the shocking 2012 Delhi gang rape, while urging a boycott of the documentary commissioned by the BBC.

The government has taken a serious view of the matter and sought an explanation from Tihar Jail authorities, where the rapist is being jailed, for allowing the interview. The Delhi police also registered a criminal case against the filmmaking.

"We urge the Indian media not to show it. Police moving chief metropolitan magistrate's court today to seek restrain from airing of the show," Delhi Police chief B.S. Bassi said.

The parents of the Dec. 16, 2012 gang-rape victim reacted angrily to the remarks made by the rapist, Mukesh Singh, in the interview where he seeks to blame their daughter for the horrific incident, calling it shameful and demanded he be hanged immediately.

Singh was sentenced to death by a Delhi court in 2013.

The British filmmaker, Leslee Udwin, said the film is her attempt to examine the attitude of men towards women and that there was nothing sensational in it.

Udwin also claimed that she took permission from the then director general of Tihar Jail Vimla Mehra before interviewing Mukesh in the prison for BBC.

In the Delhi gang rape case, a 23-year-old medical student was brutally raped by six men in a moving bus in south Delhi. She later died of internal injuries.

The rape triggered widespread protests across India and pressurized the government to adopt tougher laws against rapists and violence against women.