The case pertains to the seizure of two Pick-up trucks, laden with explosives and firearms, from Kulikawn Police Station, Aizawl, Mizoram by the Assam Rifles Naka team of 2nd Battalion Asam Rifles on May 1 last year.
The SC while rejecting the Mamata-govt's appeal said it is not inclined to entertain the special leave petition (SLP) "as there is no challenge to the notification of the Central government."
The searches at the house of the accused in Lohardaga district of Jharkhand and a rented room in Aligarh in Uttar Pradesh were conducted on July 16 and 17 and several electronic devices and incriminating materials and documents were seized, said the anti-terror agency.
According to the NIA, the accused had been instructed by their ISIS handler based abroad to pursue robotics courses and gain skills in order to carry out future terrorist attacks in the direction of the Islamic State agenda for India.
During the attack on the Indian High Commission in Canada, a grenade was also thrown, prompting the Special Cell to register an FIR under the UAPA and the Explosive Act in this instance.