Prior to its merger with the Indian Union in 1948, Tripura was a princely State that was not annexed by the British.
The Chakla-Roshanabad area presently in Bangladesh apart from being a part of erstwhile Tripura king’s domain, was the plain area link to the rest of the undivided India. The major communication links, including roads, waterways and railways were available through this for the State population.
This was also the economic link for the hilly and forested hinterland. The partition had thus imposed severe socio-economic and communication network disruption on the State.