"The NLFT insurgents are trying to enter Tripura before the elections and the Mizoram government despite knowing everything is not taking any step against them, PWD minister Badal Chowdhury told reporters here.
He claimed that insurgents based in Bangladesh unable to enter Tripura because of barbwire fencing and watch kept at night by tribals in villages but are trying to enter through Mizoram, which has a Congress government.
Chowdhury said, the people in villages neighbouring Mizoram had told him that unknown people were active on the other side.
"Now it is clear that the ultras are using the soil of the neighbouring state and the state government there led by Congress is giving indulgence to them," he alleged.
He referred to the kidnap for ransom of Rs 30 lakh of two timber traders from Tripura kidnapped by NLFT insurgents from Rajibnagar village in Mizoram's Mamit district on November 25.
"The incident of kidnap also makes clear that the ultras are using Mizoram soil," he said.