From Agartala an under-construction track has been on the way for a connection towards the extreme Southern end point of the state at Sabroom, which has been completed on 3 October 2019.

The foundation stone of the 119 km (74-mile) Kumarghat–Agartala railway project was laid in 1996 by the former Prime Minister H. D. Deve Gowda, and during the laying of rail lines, provisions were kept for swiftly converting it to broad gauge.

According to Tripura Chief Minister Manik Sarkar, the NFR had "spent Rs 900 crore ($190 million) to connect Agartala by rail by making three tunnels through the Longtharai Valley, Baramura and Atharamura Hills in Dhalai and West Tripura districts.

"[3] The architecture of the station resembles Ujjayanta Palace designed by architect Nabarun Biswas of A B Consultants Private Limited of Kolkata.

Works for conversion in BG from a small metre-gauge track from Lumding to Silchar in Assam was completed in March 2015 Freight services to Agartala had already resumed by then.