well theoretically the steps can be as follows..
- Supporting documents are important
- check authorisation as per delegation of authority
- chek the time of receipt of bank receipts and time of banking it...whether there is any time delay....(this is for internal audit...and may be skipped for statutory audit..)
- examine brs...reconciliation items...r ther any items more than 6 months old....such old items have to be reversed....
- ensure that each bank payment has a particular reference...for example...invoice number against which bank payment has been made....if lumpsum amount is made...then ignore this step....
- Download some files on audit programs....in the area of bank vouching....
but practically it is important to note that now whole banking system is online.. means all enteries are posted online and automatic charging of interest and other charges and other is tehre.. so in such case its important to evaluate the system and check out the charges on fresh accounts opened. since mistake can b committed in this area or at time of exceeding ad hoc limit.. otherwise in all cases the charging system is automatic and rare chances of error. you will rarely get any manual vouchers in any bank..