The Sensex at the Bombay Stock Exchange gained 58 points, or 0.3 per cent, to 18,078, today, after the Reserve Bank's credit policy review largely matched market expectations. The Nifty at the National Stock Exchange rose 12 points, or 0.2 percent, to 5,431. Interest rate sensitive auto stocks were the stars of today's trading.Stock markets in Japan, China, Singapore, Hong Kong and South Korea ended mixed.