After adding eight points over its last close to open at 6,790, the index extended its gains past the 6,800-mark in quick succession, before selective selling pressure dampened the market sentiment.
The Sensex, after dipping to a low of 6,757 in mid-morning trades, rebounded into positive territory as market-mood remained bullish thereafter.
A strong wave of buying support in heavyweights, select tech, banking and other old economy counters in mid-noon trades saw the index zoom to a high of 6,844 - up 62 points over its previous close.
The Sensex finally wrapped up the session with a strong surge of 51 points at 6,833. The Nifty also ended firm at 2,103 - up 12 points.
ONGC jumped 1.85% (Rs 17) to Rs 918. While HLL moved up 2.89% (Rs 4) to Rs 150, Reliance was up half a per cent (Rs 3) at Rs 569. ITC, too, ended with steady gains at Rs 1,570 - up Rs 8.
ICICI Bank reported strong gains and soared 4.13% (Rs 17) to Rs 424, while HDFC Bank gained a per cent (Rs 4) to Rs 580. SBI ended with a rupee gain at Rs 682.
Satyam advanced 1.94% (Rs 9) to Rs 473. Infosys (up Rs 8 to Rs 2,221) and TCS (up Rs 5 to Rs 1,271)
Bajaj slipped from higher levels and dipped 1.26% (Rs 16) to Rs 1,223. Hero Honda and Maruti were down a per cent each at Rs 546 (down Rs 5) and Rs 445 (down Rs 3), respectively. Tata Motors, however, closed up a tad at Rs 423.
L&T shot up 4.46% (Rs 49) to Rs 1,149. While HDFC declined 1.58% (Rs 13) to Rs 830, Tisco slipped a per cent (Rs 4) to Rs 331.
