"A detailed report is being sent to the Union Home Ministry. All aspects are being looked into - whether there was link with any terrorist organisation behind the incident," Reddy told reporters after a high-level meeting at 'Nabanna', the new state secretariat.
Chief Secretary Sanjay Mitra, Home Secretary Basudeb Banerjee, the DGP and the ADG-CID Ramphal Pawar were present at the meeting.
He had also charged the state government with destroying the evidence and not handing it over to NIA for a probe.
Countering the demands, Trinamool Congress accused BJP of politicising the issue and stoking communal tension in every state. It also made a scathing attack on Prime Minister Narendra Modi for not trusting the state administration in probing the incident which has suspected terror links.