Singh accused the BJP, SAD and Congress of "working in tandem" to absolve Tytler of his alleged involvement in the riots in which over 3,000 people died. Tytler has earlier been given a clean chit in the case.
"Central Bureau of Investigation's (CBI) decision to give a clean chit to Jagdish Tytler, prime accused in 1984 Sikh genocide shows that BJP-Akali and Congress are working in tandem to put their sins of 1984 and 2002 violence under the carpet. They have struck a deal," he said.
"Congress party's suspicious silence on this shows they have struck a deal with Modi to save them from 1984," he said.
He also urged Union minister Harsimrat Kaur Badal to resign in protest as the "Akalis claim to be champion of Sikh issues".
Commenting on the pace of investigation in the case, he said, "The Special Investigation Team (SIT) was constituted in February 2015 by Central government. But, it has not started working while they had to give report in six-months-time. It is the duty of SIT to find out if cases can be reopened which were closed by Delhi Police."