This app will help you to have a look at long distance buses connecting Kolkata to other districts in West Bengal.

Find timetables and search for WBTC/SBSTC/NBSTC and Private buses, AC and Non-AC buses and more.

Get bus related information such as source and destinations, booking options, fare details, route alignments.
Find timetable for long distance bus routes from Kolkata.
For those looking to assist, you can add your inputs - bus route with necessary details.