Hi Netra,
The section itself says the date of credit and has not left any scope for the date of invoice.
Invoice date also gets ruled out in view of the fact that TDS has to be deducted even in case of payments made without invoice.
Booking date is relevant but if you say that one can play with that date as per his convenience and will be in a position to defer the payment if not avoid it or will use this thing as a curtain to cover the cases where he forgot to deduct TDS within the same FY then my answer would be YES he will be in a position to do that but then I believe that's where the Auditor's role comes in the picture.
An auditor is supposed to question the unreasonable delay in booking of expenses.