Corporation Bank reported a 27.8% increase in net profit for the first quarter of fiscal year 2011 compared to the same period last year, above analysts' estimates. Net interest income grew 49.2% driven by strong loan growth and an improvement in the credit-deposit ratio. However, asset quality deteriorated with gross NPAs rising 11.6% sequentially. Going forward, maintaining the loan growth rate will be challenging in a rising interest rate environment given the bank's regional operations and lower CASA ratio compared to peers.