We will list down shortcuts for checking Talktime Balance, Data Balance and More with BSNL. We have verifying this against Kerala BSNL number, but will try to update details for other states based on request. Please leave a comment. 

BSNL Kerala -  Talktime Balance, Data Balance and More

*123# - Main balance

*124*2# - STV Balance (e.g. Data balance left for the day in STV333).