Duplicate CellOne Bill
First of all enter the ten digit mobile number without putting 0 or STD code.
Than write the Account number
Than press the submit button to download/ print/ view the bill.
For entering the Account Number one can have a look over the preceding bills. In case the enquired bill is first one than in that case make a call to the office of BSNL for getting the Account number.
The bill is processed on monthly basis.