"Bengal police had passed on intelligence last month that northeastern militant outfits — such as Ulfa, the All Tripura Tiger Force and the Kamtapur Liberation Organisation (KLO) —were planning blasts in Tripura towns with Huji help. In Tripura, militant attacks usually happen in rural areas," said a Senior Police officer.
"The Bengal police apparently learnt of these plans after the arrest of a KLO leader in north Bengal. But Tripura police did not act on the information, possibly out of complacency since the Tiger Force appeared to have weakened over the past few years," the officer said.
He claimed that north-eastern militants received training from Bangladesh Rifles near Chittagong.