You have around 50 building in SG area. Most famous one is Prem Bandhan which has AC rooms. Other ones do not have AC which is bit dampner for Kolkata heat. Nightlover, Neelkamal Bldg# 12 , Bldg No - 10.. so many of them.
Use the pimps roaming around as you need to pay anything. They get their commission Reviewom the girl directly. They do not charge even you do not select any girl mpter 5-6 buildgs even....
Standard rate is 1500 + 50 for 1 shot ST / 1 hour time in famous building.
You can get stuff as cheap as 300 as well in non-famous building.