Private sector lender Kotak Mahindra Bank on Friday announced a consolidated net profit of Rs 240 crore for the fourth quarter ended March 31, 2008, a 41 per cent growth over the corresponding period a year-ago.The bank had a net profit of Rs 170 crore in the fourth quarter of financial year ended March 31, 2007, Kotak Mahindra said in a filing to the Bombay Stock Exchange.