All of the booked people were going to Bangladesh via Tripura and just had arrived in Agartala via Railway from Uttar Pradesh. 

 

At the primary investigation, the Bangladeshis said, before 3 years they came in India to study in a Madrassa. 

 

On that time they had valid documents, Visa, passport but now the validity of their documents have been expired. 

 

So, they were suggested by Uttar Pradesh friends that via Tripura it's very easy to cross the border without papers and thus they were trying for it. 

 

During such an attempt, when they reached Agartala Railway station, were booked by MPF. No proper documents were recovered from the arrested youths. Investigation is going on.