To reach Prayagraj from Sabroom, you must first travel to Agartala. From Agartala, you can take a train to Prayagraj, usually involving a change in Kolkata. The distance is over 1600 km. It is a long journey to the holy city.
Total Distance: 1650 km by road, 1300 km air distance.
Check for connecting trains at Howrah station.
October to March for pleasant weather in Prayagraj.