Bharat Sanchar Nigam has a new service in offer by which you can get sms alerts of your DataOne Broadband Usage every week to your registered mobile number
You can register to get the alerts at this URL http://bbusage.bsnl.in/
do not prefix zero before STD Code.
enter your Broadband service username (eg. email@example.com) in the username column.
do not prefix zero before Mobile Number.