The definition of interest in section 2 definition 28A of income tax act is as follows:-
"interest" means interest payable in any manner in respect of any moneys borrowed or debt incurred (including a deposit, claim or other similar right or obligation) and includes any service fee or other charge in respect of the moneys borrowed or debt incurred or in respect of any credit facility which has not been utilised ;]
This definition suggests that the fees are of the nomenclature of INTEREST and therefore any TDS will be provisions of 194A and not 194H.