Cost Allocation in Voucher

The ledger for which Cost allocation i.e. cost category and cost centre is applicable, should have the option ' Cost Centres are applicable?' set to yes at the time of ledger creation or alteration.
Then at the time of passing a voucher entry when you will select that ledger and enter the amount involved against the ledger, the Cost allocations for that ledger will appear. Here you have to specify the Cost category(Department/Branches/Executives) and then name of the Cost centres(Bangalore/Mumbai/Kolkata/Dehli) from the list of Cost categories and list of Cost centres.
Type the amount for that particular cost centre in the amount column. You can allocate cost to multiple cost centres if the total amount entered for that cost centre is less than the total amount involved in the transaction.
Once you specify amount to cost centres under one cost category you can go for selection of another Cost catagory just by pressing Enter to move to the next field.