State-run lender Corporation Bank reported a 28 per cent rise in net profit at Rs 333.78 crore for the first quarter ended June 30. The bank's net profit during the corresponding quarter last year stood at Rs 261.25 crore. The total income of the bank saw an increase of 9 per cent at Rs 2,294 crore in the April-June quarter,up from Rs 2,102 crore in the year-ago quarter,Corporation Bank said in a filing with the Bombay Stock Exchange. The percentage of net non-performing assets (NPAs) increased to 0.43 in the first quarter this fiscal,from 0.32 last year,the bank said in the statement.