The major Sensex gainers were: Reliance Industries, up 2.47 percent at Rs.1,031.95; HDFC Bank, up 2.29 percent at Rs.856.35; DrReddys lab, up 1.56 percent at Rs.2,678.55; Gail India, up 1.71 percent at Rs.464.00; and Infosys, up 0.88 percent at Rs.3,239.15.