The Sensex, after yesterday's volatile session, opened up 52 points at 14,893.
The index is now up 137 points at 14,977.
Sterlite has gained 3% at Rs 684. Wipro, HDFC, Hindalco, ICICI Bank, Mahindra & Mahindra have advanced 2.5% each.
Tata Power added 2% to Rs 1,107. ITC, Tata Steel, Larsen & Toubro, TCS, Tata Motors, Jaiprakash Associates and Reliance Communicatiosn have moved up 1-2% each.
However, Reliance Infrastructure and ONGC have slipped a per cent each to Rs 1,291 and Rs 1,168, respectively.
