BSNL provide Prepaid services on both type of connections i.e. CDMA & GSM.

Following are the services provided by BSNL Mobile - prepaid: 

• Mobile to mobile voice calls.
• Mobile to land line voice calls.
• Various supplementary services like:
• CLIP (Calling Line Identification Presentation).
• SMS (Short Messaging Service).
• Call forwarding, call wait, Voice mail etc"

How to know balance:

Dial 123 and follow the IVRS instructions.

For service related problem:

For all service related problems our 24-hour help line number is 1800-180-1503/ 1503.

Requires PUK Number:

The PUK No can be obtained from help line (9415024365) on giving mobile No. and SIM serial number.