Senior officials of the Home Ministry said a report of intelligence agencies and from the state government had been received and a decision whether to hand over the case to NIA would be be taken only by Union Home Minister Rajnath Singh, who is at present campaigning in Maharashtra and Haryana assembly elections.
Grenades, chemicals used in making explosives, a book on how to trigger explosion, jihadi literature, a video on jihadi training and a map of important locations in Burdwan district were seized by the CID team from the house.
A large number of watch dials, SIM cards and other tools required to make improvised explosive devices were also seized from the house.
Mamata Banerjee's government in West Bengal, which was initially reluctant to accept that the incident in Burdwan was a terror incident, finally handed over the case to the state CID after material collected from the site of the incident showed that some terror group was assembling bombs in the house and were planning to carry out a strike.
Arch political rivals BJP and CPI(M) are united in asking the Centre for handing over the case to NIA for a probe as they believed that the state government was trying to hush up the matter.