To reach Rishikesh from Sabroom, you must first travel to Agartala. From Agartala, you can take a train to Haridwar, then a taxi to Rishikesh. The distance is over 2250 km. It is a long journey to the yoga capital.
Total Distance: 2300 km by road, 1850 km air distance.
Check for connecting trains at Delhi station.
October to March for pleasant weather in Rishikesh.