Q. Which city has become the fourth capital city in the northeastern region to be connected to the railway network?
Answer: Aizawl
Notes: Mizoram’s capital Aizawl has been linked to the national railway network through the new Bairabi–Sairang line, marking a major boost in North-East connectivity. Mizoram now becomes the fourth North-East state with capital city rail connectivity after Assam, Tripura, and Arunachal Pradesh. This project is part of the Ministry of Railways’ larger mission to connect all North-East capitals.