Despite fencing in 90% areas, ultras enter into the Indian territory taking the advantage of the porous border in unfenced areas.
"The chopper would also be used for dispatching food to those border outposts situated on cliff tops which can be approached only by chopper," he added.
The BSF would also use non lethal rifles to shoot rubber bullets instead of fire cartridges so that infiltrators are not killed but injured painfully and can be caught easily. Border guards are now also using an advance alarm system which would alert them on attempts of infiltration.
"Recently we could apprehend two smugglers by using the device," the IG said. "Even as insurgency has come down drastically in the state, the two outlawed insurgent outfits, All Tripura Tiger Force (ATTF) and National Liberation Front of Tripura (NLFT), were still using the soil of Bangladesh and they have their camps in the neighbouring country," Jain said.
With the establishment of 20 more Border Outposts (BOP), the gap between any two BOPs would be reduced from 4.5 kms to 3.5 kms, he said and added that one more battalion of the paramilitary force would be added to the 16 battalions already present.