It takes only 2 hours and 30 minutes to go to Comilla from Dhaka by road i.e. by bus . There are numerous bus services on Dhaka Comilla route from different places of Dhaka. You can come to Comilla by bus as per your choice. From Dhaka's Syedabad Bus Terminal and Kamalapur to Kusht ( 01981-002932 , 01981-002942 ), Tisha ( 01731-217322 ), Star Line, BRTC ( 01770-493775 ), Royal, Asia Line Paribahan to Comilla costs Tk 250 to Tk 400 per person. .
Besides, you can easily come to Comilla by train from Dhaka. Almost all Chittagong bound trains (except Subarna and Sonar Bangla) stop at Comilla station. Fare per person from Dhaka to Comilla is Tk 170-702.
You can choose Prince or Saudia bus to come from Chittagong to Comilla. Or you can come by any Dhaka bound bus, you have to get down at Comilla. You can reach Comilla faster than taking a bus to Dhaka by train. Or you have to come to Comilla by your convenient vehicle from any other part of the country.
Comilla to Buddhist Vihar : After coming down from Comilla, first come to Kandirpar. There is a local CNG stand to Kotbari near Kandirpar Awami League office. You can go to Kotbari for a fare of 30 taka per person. And you can take CNG reserve to Kotbari from anywhere in Comilla city. Taking CNG reserve will cost Tk 150. Go to Shalbon Vihar from Kotbari by auto rickshaw for a fare of 10 taka. Again from Comilla you can come to Shalban Bihar via Kotbari Bishwaroad by local CNG. In this case, the rent will be 20 rupees per person. Shalban Vihar, Buddhist Temple, Mainamati Museum are located nearby.
Note: If you are coming to Comilla by bus and if the bus goes to Kotbari then Kotbari bus stand will be the closest to Shalbon Bihar.