The private sector lender had posted a net profit of ₹317 crore in the July-September quarter of the last fiscal 2025-26. Tamilnad Mercantile Bank on Monday reported a 42 per cent growth in net profit at ₹451 crore for the September quarter of FY27.The private sector lender had posted a net profit of ₹317 crore in the July-September quarter of the last fiscal 2025-26.