i have used the tata indicom broadband and find it satisfactory.

hi,
i m looking for a good ISP providing broadband services in mumbai -cuffe parade area.
could anyone kindly tell me whether there are area restrictions within a district/city on the ISP?
i have used the tata indicom broadband and find it satisfactory.
but this new connection i m looking for is for my corporate office and would be used by 15-25 users.
regards
sandeep uke