At 1:43 pm, ACC was top gainer on the Sensex. It touched an intraday high of Rs 644.45 and an intraday low of Rs 616. The share was quoting at Rs 639.60, up Rs 26.10, or 4.25%.

It was trading with volumes of 246,624 shares. Yesterday the share closed down 0.82% or Rs 5.10 at Rs 613.50.