Mumbai, Oct 24 (UNI) Kotak Mahindra Bank on Saturday reported a 29 per cent year-on-year increase in standalone net profit to Rs 4,212 crore for the second quarter ended September 30, 2026, but its net interest margin (NIM) moderated to 4.31 per cent following the mobilisation of around Rs 55,000 crore in foreign currency non-resident bank (FCNR(B)) deposits.