The Sensex slipped to a low of 12,372, and then rebounded into the positive zone. The index is now up 21 points at 12,410.Tata Steel, HDFC Bank and Hindalco have spurted over 1% each to Rs 544, Rs 940 and Rs 174, respectively.Reliance Communications, Gujarat Ambuja, Hero Honda and BHEL are the other prominent gainers.Bajaj Auto, HDFC and Wipro are the notable losers.