Hearing a petition filed by the brother of the deceased seeking directions to CBI, which has been investigating the murder since 2009, for speeding up the probe, Justice Samapti Chatterjee directed the agency to form an SIT.
The SIT would be headed by a joint director of the agency, Justice Chatterjee said.
The court ordered CBI to file a report on progress of the investigation on February 24, 2017, when the matter would be taken up for hearing again.
The matter was handed over to CBI for investigation in 2009.
Amit moved the high court again yesterday praying for a direction to CBI to expedite the probe.