The BairabiâÂÂSairang line is an Indian railway line from Bairabi to Sairang in Mizoram under the Northeast Frontier Railway zone of Indian Railways. It is the only railway line that connects Aizawl, the capital city of Mizoram, with other parts of India. The project initiated in 2015, was completed and inaugurated in 2025. It reduce the travel time from Bairabi to AizawlâÂÂfrom 6âÂÂ7 hours by road to under 1 hour by train and Silchar in just 3 hours which used to take 8-12 hours by road, benefitting students, traders, medical patients and tourists with a more affordable travel option.
In 1999, the plan to built Bairabi-Sairang line conceived, but did not materialise due to the proposed alignment through deep forest, hence, in 2006 a survey for new alignment was completed and the new alignment was approved in 2008. The construction started in 2015. The 23% of the line is on bridges including 55 major bridges including one of IndiaâÂÂs tallest pier bridge over the Kurung river, 30% through 45 tunnels, and the rest on steep unstable slopes in earthquake prone seismic zone 5, making construction riskier. Bairabi-Sairang rail line entails 142 bridges (55 major bridges and 87 minor bridges), and four stations, and land was acquired for the construction. The Northeast Frontier Railway completed the construction of the tallest pier in Mizoram in the approach of Sairang Railway Station, the height of this pier is . On 23 August 2023, a span under construction on the Sairang bridge collapsed, killing 26 workers. Key details of this project aside from Kurung Bridge are a long tunnel (the longest among 45 tunnels in this stretch), the long bridge near Hortoki station (the longest among 55 major bridges and 87 minor bridges in this stretch) & 66 scenic curves enroute.
In 2008, the total estimated cost of entire project as â¹619 crore, later revised to â¹2384 crores, then â¹5021.45 crores, and then in 2017 to â¹8605 crores, and actually costed â¹8,071 crore upon completion in 2025.
On 13 September 2025, Prime Minister Narendra Modi inaugurated the railway line with an opening service of the SairangâÂÂDelhi Rajdhani Express, the SairangâÂÂGuwahati Express and the Sairang-Kolkata Express.
The route has one existing and four new stations at the time of construction, listed north to south:
Direct trains from Sairang near Aizawl are running to New Delhi , Guwahati , and Kolkata , which also connect other major cities, such as Agartala , Siliguri , and Dimapur .
Sairang-Anand Vihar Terminal Rajdhani Express, Sairang-Kolkata Express & Guwahati-Sairang Express are running only now