Yes, but to understand why they dont one needs to look into the job. Its not that easy to get the ID proofs of every person visiting in & either its feasible to loose customer & already the businees to no more then 3-5 Rs. margin. Buddy let me tell you that Cybers in town i.e. commercial area there are diff type of visitor but in close proximity of residential its mostly near by people who check in sometimes casually wearing just T shirt & barmuda for fun. Cyber cafe owners hardly get cooperation from customer for this. But the bottomline is even the ID proof cannot be "authenticated" , i am sure you must have heard of duplicated PAN, passport etc... so wht sense in asking for
