Regarding markings in bank passbook

Thre is no cush provision under the I-T Act which prohibits frm wirting anything in the banks passbook/statement.

However when you receive any cheque, the details should be written on the counter-foil for future reference & when any cheque is paid by you the details shud be written in the cheque book at the beginning or at the end of the cheque book.  So there is no need to write anything in the bank statement/passbook

Pl. Don't do that .Never write in Pass Book .Get the passbook updated.Also consider interest entries .