New Delhi: The Supreme Court on Thursday issued notice to Sajjan Kumar on an appeal filed by the special investigation team that has challenged the anticipatory bail Delhi High Court granted the Congress leader this year in two anti-Sikh riot cases.

A bench of Justices A.K. Sikri and Ashok Bhushan also expressed concern over the pace of the trial.

"You must know that 34 years have passed after the incident. It's high time those cases are tried at the earliest and taken to the logical conclusion," Justice Sikri, who was heading the bench, told additional solicitor-general Maninder Singh, who appeared for the SIT.

The high court had early this year upheld the anticipatory bail granted to Kumar by a trial court on December 21, 2016, in two cases of killing of three Sikhs.

Kumar claims he has been falsely implicated because of political reasons, that too 32 years after the alleged incidents.

The two cases pertain to incidents that had occurred under the capital's Janakpuri and Vikaspuri police stations.

In the Janakpuri case, it was alleged that two Sikhs, Sohan Singh and his son-in-law Avtar Singh, were lynched by a mob allegedly instigated by Kumar. In the Vikaspuri case, Gurucharan Singh was killed by a mob allegedly led by Kumar.