Sikkim to Bihar · 301 km · Compare trains, buses & driving options
The straight-line distance from Gangtok to Darbhanga is approximately 301 km (187 miles). By road, the distance increases to about 440 km due to terrain, highways, and road networks connecting Sikkim to Bihar.
Indian Railways connects Gangtok and Darbhanga with multiple daily services. The journey takes approximately 8 hrs. Rajdhani and Shatabdi express trains are faster, while mail and passenger trains make more stops but cost less.
Book in advance through IRCTC, especially during festivals and holidays when seats fill up quickly.
Check Trains on IRCTCBus travel is a popular and affordable option for the Gangtok to Darbhanga route. The journey takes approximately 9 hrs 47 min covering ~440 km. Both government and private operators service this route.
Night buses are popular for this distance — travel while you sleep and arrive fresh at your destination.
Search Gangtok to Darbhanga BusesA road trip from Gangtok to Darbhanga covers approximately 440 km and takes around 5 hrs 21 min. Start early to make the most of daylight hours.
For official travel information, regulations, and booking services:
IRCTC — Indian Railway Catering and Tourism Corporation — Book train tickets online
Airports Authority of India — Airport information and flight status
DGCA — Directorate General of Civil Aviation — Indian aviation regulator
Incredible India — Official tourism portal of India