Kolkata - BSNL
To recharge, dial *123*# & Press OK from your Cellular phone. Access round the clock help at following toll free numbers. Data one Broadband '1600-424-1600' , PSTN Call Center '1500' (in select states) , Sancharnet Help Desk '1957' , CELLONE all India Help '9400024365' , Customer can dial *123# for balance check at any time.


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