The Indian equity benchmarks edged higher on Thursday ahead of weekly expiry of index futures and option contracts led by gains in ICICI Bank, Infosys, Titan, Tata Consultancy Services, Kotak Mahindra Bank, Asian Paints, HDFC Bank and Mahindra & Mahindra. The Sensex rose as much as 498 points and Nifty was trading firmly above its important psychological level of 16,000. Most of the Asian markets were trading higher with Japan's Nikkei up 0.48 per cent, Hong Kong's Hang Seng fell 1.2 per cent, South Korea's KOSPI advanced 1.27 per cent and Taiwan Weighted advanced 0.13 per cent.