Members of the hit squad are alleged to have played different roles as shooters, drivers and spotters on the day Nijjar was killed at the Guru Nanak Sikh Gurdwara in Surrey, British Columbia.
A bench of Justices Sanjiv Khanna and Dipankar Datta told Additional Solicitor General SV Raju, appearing for the ED, to come prepared for a hearing on May 7.
