An Indian Sikh holds a placard as he sits alongside a poster depicting the image of Congress leader Sajjan Kumar during a rally seeking justice for the massacre of Sikhs following the 1984 assassination of then Indian prime minister Indira Gandhi, near the Gurudwara Gobind Dham in Ahmedabad on June 2, 2013. Activists accuse Congress of having turned a blind eye to the killing of Sikhs and say some of its leaders may have helped incite mobs. AFP PHOTO / Sam PANTHAKYSAM PANTHAKY/AFP/Getty Images [Representational Image]

The Delhi High Court on Monday convicted Congress leader and former Member of Parliament (MP) Sajjan Kumar in the 1984 anti-Sikh riot case. Kumar was acquitted by a trial court in 2013.

The 73-year-old has been found guilty of murder and promoting enmity between different groups. He has to surrender by December 31.

The HC bench comprising Justices S Muralidhar and Vinod Goel gave the verdict after hearing arguments on appeals filed by the Central Bureau of Investigation (CBI), riot victims and other convicts.

"It is important to assure the victims that despite the challenges truth will prevail," the High Court said in its ruling.

The prosecution's key witness, Cham Kaur, had told the court that she saw Kumar addressing a mob in Delhi's Sultanpuri neighbourhood on October 31, 1984, and saying that Sikhs have killed "our mother", referring to then PM Indira Gandhi.

Kaur said two of her family members were murdered by the mob following Kumar's communal comments.

Earlier, Sheela Kaur, another witness, had also identified Sajjan Kumar as the one who organised the riots.

Kumar has been convicted under the sections 120-B, 147,148, 302, 395, 427,436, 449, 153A, 295, and 505 of the Indian Penal Code (IPC).

Along with Kumar, former Congress councillor Balwan Khokar, Captain Bhagmal Singh, Giridhar Lal and two others have also been found guilty in the case.