5 venues in Kolkata take online bookings through ClubManager. Each has its own page with opening hours, what it offers and a booking form — and you can reserve without creating an account.
They are spread across Howrah, Salt Lake, Park Street, Gariahat, New Town — so "near me" usually has an answer in Kolkata without crossing the city.
Pick a venue, pick a time, and confirm. No account is needed — a booking can be made as a guest with a phone number, and you get a pass you can open on your phone when you arrive. At the venue you can check yourself in from that pass rather than queueing at the desk.
The venues listed here run on ClubManager, and being listed is part of the same account their staff use to run the floor. Registering takes a few minutes and the first month is free.