Alipurduar, Aug. 19: Police are not ruling out the involvement of any Assam-based outfit in the bus blast at Barobisha yesterday as officers said the explosion would have taken place in Assam if the vehicle had not entered Bengal half an hour before its scheduled time.
Yesterday, Akash Magharia, the additional superintendent of police, Alipurduar, had said a letter found at the blast site had revealed that an outfit called the National Liberation Force of Bengalis, based in Lower Assam, was behind the explosion.
“The police have little information about the outfit. The police initially suspected the KLO,” he said.
Sources said the letter was found inside a lunch box in the luggage compartment at the rear end of the parked bus.
There were no passengers on the bus when the explosion happened.
“Chances of involvement of any outfit based in Assam cannot be ruled out. We are trying to find out if any of the banned organisations used the banner of the new outfit to carry out the explosion,” Magharia said today.
Yesterday, seven passengers were detained and the police said interrogation revealed that the bus had reached Barobisha, 34km from Alipurduar and 4km from the border with Assam, 30 minutes before the scheduled time.
The police suspect that the insurgent group that planned the blast expected the explosives to go off in Assam, and not in Bengal.
“At the time of the explosion, the vehicle would have been around Kachugaon in Kokrajhar district of Assam,” Magharia said.
The detained passengers were released today.
The bus that was on its way from Gelefu to Phuentsholing, both in Bhutan, via Assam and Bengal, with 25 passengers was parked near a hotel for lunch when the bomb went off around 12.30pm.
Eight persons standing near the vehicle were injured in the blast triggered by a timer device.
Magharia would travel to Gosaigaon to talk to Assam police.
“I will go to Assam to collect information about the new organisation,” he said.
The state police have asked their counterparts in Bhutan for a timetable of all buses that travel to and from Bhutan via Bengal and Assam along with the vehicle registration numbers to intensify vigil.