Found the below info from Kotak Most important T&C's
W.e.f. 1st June, 2025, No cashback on Utility spends and
Fee on Utility Spends : 1% on cumulative utility spends exceeding threshold per statement cycle^^^^
Not applicable on White Reserve, Kotak Solitaire, Kotak Infinite, Kotak Signature and Myntra Kotak Credit Card