TDS on Expense Provision Year End

Hi,

I have a query with regards to Expense Provision done for a scheme of Mutual Fund, where in an adhoc provision for expense on promotional expense is being done, and charged to that scheme as on March closing, but since now there are bills to be received for actuals spent, can the expense be provided with out deduction of TDS and financials can be closed.

On receipt of actual bills can TDS be booked for that month and any Under/Over provision effect be taken at the same time.

Is the understanding clear.