HDFC Bank, India’s second-largest private lender, on Wednesday reported a 30.4 per cent increase in its net profit at Rs1,453.1 crore for the quarter ended March 31, 2012, led by higher interest rate margins and stable asset quality. The bank had reported a net profit of Rs1,429.6 crore in the corresponding quarter of 2010-11. The lender’s total income increased 32.1 per cent at Rs8,880 crore in the quarter under review from Rs6,724.3 crore in the corresponding quarter of 2010-11. Net interest income grew by 19.3 per cent at Rs3,388.3 crore.