The Sensex touched a high of 11,608, and then slipped into the negative zone to touch a low of 11,557.The index has rebounded into the positive zone and is now up 12 points at 11,584.Tech Mahindra listed at Rs 525 on the BSE, a premium of 44% to the issue price of Rs 365. Reliance Energy and Hindalco are up nearly 1% each at Rs 450 and Rs 174, respectively.
