The Sensex has rebounded into the positive zone and is now up 88 points at 18,826.NTPC has soared 2.8% to Rs 260. Reliance Communications has rallied 2.5% to Rs 712.HDFC has surged 2% to Rs 2,561.Hindalco, Bharti Airtel and Larsen & Toubro have gained 1.7% each at Rs 210, Rs 848 and Rs 4,241, respectively. ONGC has moved up 1.6% to Rs 1,198. Reliance Energy is up over 1% at Rs 1,839.Wipro has plunged 2.7% to Rs 445. Infosys, Mahindra & Mahindra and ICICI Bank have slipped 1.7% each to Rs 1,612, Rs 716 and Rs 1,128, respectively.Hindustan Unilever and ITC are down over 1% each at Rs 196 and Rs 176, respectively.