Top stocks that witnessed heavy demand in pre-opening session

At the pre-opening bell, the frontline index S&P BSE Sensex opened in green with a gain of 513.68 points or 0.63%. On the sectoral front, metals jumped by 0.38%, power zoomed by 0.45% and auto soared by 0.33%. Meanwhile, Shree Renuka Sugars Ltd, Praj Industries Ltd and Bajaj Hindusthan Sugar emerged as the top gainers in the pre-opening session today.