Donyi_Polo_Express
The 15617 / 15618 Naharlagun–Shokhüvi Donyi Polo Express previously known as Naharlagun–Guwahati Intercity Express is a daily Intercity Express of the Indian Railways, which runs between Shokhüvi in Nagaland and Naharlagun in Arunachal Pradesh.[1][2][3][4]