For Broadband Complaints in Bangalore :
For Land Line faults.
SMS 52295 LLF 080 followed by your landline number.
Fault Bookings by Telephone.
Dial XXXX2198, wheere XXXX is the first four Digits of your telephone Number.
Or Call 2845 1898/2845 1999.
You may also visit www.selfcare.sdc.bsnl.co.in and create an account.
You may need your Broadband user ID.
You can get it from the telephone exchange.(preferably your telephone exchange)
After you create an account , you will be able to get Duplicate of your Bills and ot details of your account.
General Help lines.
Landline 1500: Broadband 1504.
Fault Repair Service 198.
Additional sites for Booking,Plan Conversion,Bill Payment.