The Sensex opened with a positive gap of 494 points at 14,978 on the back of positive vote from NSG. The index soon crossed the 15,000-mark and touched a high of 15,107.
The Sensex is now up 558 points at 15,042.
The market sentiment is also boosted by positive news flow from the US. The US government yesterday announced its plans to acquire Fannie and Freddie - the two companies hit badly by the suprime crises.
NTPC has surged nearly 8% to Rs 187. BHEL has soared over 7% to Rs 1,856.
Reliance Infrastructure and ICICI Bank have rallied over 6.5% each to Rs 1,085 and Rs 732, respectively.
Larsen & Toubro has gained 6% at Rs 2,772. SBI, Tata Power and HDFC have advanced 5% each to Rs 1,597, Rs 1,135 and Rs 2,394, respectively.
All index stocks are in positive zone with minimum 2% gains.