In my opinion processing charges are in the nature of interest and included in the definition of interest as stipulated u/s 2(28A) "interest" means interest payable in any manner in respect of any money borrowed or debt incurred (including deposit, claim or other similar rights or obligation) and included any service fee or other charge in respect of the money borrowed or debt incurred or in respect of any credit facility which has not been utilised.
and there is requirement to deduct TDS from payment of interest.
G C Baid