The Delhi High Court on Monday convicted Congress leader Sajjan Kumar for conspiracy to commit murder in the 1984 anti-Sikh riots case and sentenced him to imprisonment for life.

A bench of Justices S Muralidhar and Vinod Goel convicted Kumar for criminal conspiracy, promoting enmity and acts against communal harmony.

The high court said Kumar’s life imprisonment will be for the remainder of his life and asked him to surrender by December 31. It also asked him not to leave Delhi before that.

The conviction of five others -- former Congress councillor Balwan Khokhar, retired naval officer Captain Bhagmal, Girdhari Lal, former MLAs Mahender Yadav and Kishan Khokhar-- were also upheld by the high court.

The high court was hearing the appeals filed by the CBI, riots victims and the convicts, challenging a trial court’s judgement in the 1984 anti-Sikh riots case in which Kumar was acquitted.

The high court had on March 29 last year issued show cause notices to 11 accused, including Khokhar and Yadav, in five 1984 anti-Sikh riots cases which were earlier closed.

The riots broke out after the assassination of prime minister Indira Gandhi by her Sikh bodyguards on October 31, 1984.