Rorathang is a town situated in the bank of Rangpo River on National Highway-717A, in Pakyong District of Sikkim, India. Rorathang lies on National Highway-717A connecting Bagrakote to Gangtok via Labha- Algarah.National Highway-717A is the part of Bharatmala Pariyojana of Ministry of Road Transport and Highways, Government of India.