|Status||Under construction, Target 2020|
|Website||Indian Railway Website|
|Line length||84.25 km (52.35 mi)|
|Number of tracks||Single Diesel-Line|
|Track gauge||5 ft 6 in (1,676 mm)|
The 84.25 km broad gauge railway line from Katakhal Junction to Bairabi railway stations, was completed on 21 March 2016, at a cost of 326.51 cr INR. An estimated 28 hectares (69 acres) of land is required for the construction of 51 kilometres (32 mi) long Bairabi-Sairang rail line. The Bairabi-Sairang rail link will require construction of 130 bridges, 23 tunnels and four stations namely Hortoki, Kawnpui, Mualkhang and Sairang. The cost of Construction from Bairabi to Sairang is estimated at 2384 Crores.
In August 2015, Indian Railway completed a survey for a possible new route extension from Sairang to Hmawngbuchhuah on Mizoram’s southern tip on the border of Myanmar where at nearby Zochachhuah Kaladan Multi-Modal Transit Transport Project (KMMTTP) road enters Myanmar. Future line development plan entails extending the line from Aizawal to south to Zochawchhuah(India)-Zorinpui(Myanmar) on the India-Myanmar border, from where it will then be extended to 90km-long "Sittwe-Kyaukhtu railway" to connect it to Sittwe Port as part of Kaladan Multi-Modal Transit Transport Project. "Zochawchhuah(Zorinpui)-Sairang railway" in India, survey for the 375 km line rail line from Sairang (Aizawal) to Hmawngbuchhuah on border near Zochawchhuah-Zorinpui was completed in August 2017 and it will be constructed in future phase. "Kyaukhtu-Zorinpui railway line" is 200 km long planned but not yet surveyed line.
Other future extension spur is from Aizawal to east to Zokhawthar Future line development plan entails extending the line from Imphal to Moreh on the India-Myanmar border, from where it will then be extended to the existing railhead at Kalay (also called Kale and Kalemyo) in Myanmar to form part of the ambitious Trans-Asian Railway. Future phase would entail from the existing Kalemyo railhead to another existing Shwebo railhead for a shorter direct route to Mandalay, and beyond to existing and under-development routes by other nations to the North Thailand, Laos, Vietnam and Nanning in China.
As of August 2019, the 65% work is complete, and the revised expected deadline is December 2021.
Indian Railway has already converted the current 84 km railline from Katakhal (Assam) to Bairabi 2 km inside Mizoram. Passenger services started on this line on 27 May 2016 by formal inauguration of Silchar - Bhairabi Passenger Train service (55667/55668). Its further 51.38 km Bairabi Sairang line extension from Bairabi to Sairang (20 km north of Aizawl) in Mizoram is under construction, with target completion date of March 2019 as per status update in March 2016. Due to Rainy season and Compensation issues, date of completion has been revised to March 2020. Nov 2017: Of 11.46 km tunnel to be dug for this 51.38 km Bairabi to Sairang rail line, 8.6 km tunneling work is completed.. 22 of the 23 Bridges have been Completed as of November 2017.