Top stocks that witnessed heavy demand in pre-opening session

At the pre-opening bell, the frontline index S&P BSE Sensex opened in the red, with a loss of 415.57 points or 0.55%. Sector-wise, in the pre-opening session, metals gained 0.74%, power rose by 0.88%, and auto increased by 0.68%. Meanwhile, TeamLease Services Ltd, Alembic Pharmaceuticals, and Alivus Life Sciences emerged as the top gainers on the BSE in the pre-opening session on February 24.