The construction activities have started for longest tunnel in Dimapur-Kohima rail project in Nagaland. Work has commenced at portal-1 of tunnel no. 7 of the new rail line project which is situated in Tsiepama village of Medziphema circle in Dimapur district. To access this, a 12-km-long approach road has already been constructed. The tunnel is slated to become the longest in the entire project. 

The project comprises eight new stations - Dhansiri, Dhansiripar, Shokhuvi, Molvom, Pherima, Piphema, Menguzuma and Zubza. It encompasses 27 major bridges, 148 minor bridges, five road over bridges, 15 road under bridges, and 21 tunnels spanning a length of 31 km. The tunnel is located between the Pherima and Piphema stations of this project.

The 82.50-km-long (2.75 Km in Assam and 79.75 Km in Nagaland) Dimapur-Kohima new railway line project takes off from the Dhansiri station of Assam to Zubza adjacent to Kohima is being constructed at a cost of Rs 6,663 crore. The 16.5 km section from Dhansiri to Shokhuvi was already commissioned in October 2021.

Furthermore, passenger train services from Shokhuvi to Naharlagun in Arunachal Pradesh and Mendipathar in Meghalaya have also been introduced. Overall, the rail connectivity project, upon its completion, will facilitate the transportation of essential commodities such as food grains, petroleum products, automobiles to Nagaland at a reduced cost, besides providing a reliable means of communication to the local population.