How to check Call and data balance of your BSNL mobile - how to block telemarket calls to BSNL mobile and Landline
To check call Balance in your BSNL mobile,Please Dial *123#
To check Data / Internet Balance of your BSNL mobile Dial *234#

For Post paid or Pre paid recharging of your BSNL mobile, visit http://portal.bsnl.in
If you BSNL land line is not working then dial 198/1500/1800-345-1500 to register complaint.
How to block commercial calls and SMS coming to your BSNL mobile?
BSNL customers who are using Mobile and landline connection has the provision to disallow the telemarketing calls and commercial SMS.
For this you have to register to "Do not disturb" registery.
Dial at 1909 and register to "Fully Blocked Category" or "Partially Blocked Category".
or SMS "START 0 " to 1909 for full blockage of Ads
More info : http://bsnl.in
To check Data / Internet Balance of your BSNL mobile Dial *234#

For Post paid or Pre paid recharging of your BSNL mobile, visit http://portal.bsnl.in
If you BSNL land line is not working then dial 198/1500/1800-345-1500 to register complaint.
How to block commercial calls and SMS coming to your BSNL mobile?
BSNL customers who are using Mobile and landline connection has the provision to disallow the telemarketing calls and commercial SMS.
For this you have to register to "Do not disturb" registery.
Dial at 1909 and register to "Fully Blocked Category" or "Partially Blocked Category".
or SMS "START 0 " to 1909 for full blockage of Ads
More info : http://bsnl.in