Buoyed by Monday's positive close, the Sensex today opened above the 4,900 levels with a gain of 12 points at 4,907. The markets remained firm through the session as broad-based buying in tech, PSUs and other select old and new economy stocks kept the momentum going, which saw the index touch a high of 5,000 in the mid-afternoon trades.

The Sensex, however, marginally slipped below the 5,000 levels towards the close, and ended 94 points up at 4,989. The Nifty, which crossed the 1,600 levels to touch a high of 1,603, ended 29 points higher at 1,598.

Infosys rose sharply on steep buying support, and spurted 4% (Rs 194) to Rs 4,928. While Wipro gathered pace towards the close to end 5% higher (Rs 71) at Rs 1,520, Satyam closed up a per cent (Rs 4) at Rs 327.

Reliance attracted decent buying support, and added nearly 2% (Rs 8) to Rs 475. ITC closed up a rupee at Rs 854. HLL traded on a flat note through the session, and closed down a tad at Rs 179.

SBI advanced 3% (Rs 13) to Rs 467 on sharp buying support. HPCL traded at higher levels to finish nearly 2% higher (Rs 10) at Rs 369. While MTNL moved up 2% to Rs 113, BHEL closed off-highs with a marginal gain of Rs 3 at Rs 435.

Cipla rallied sharply through the session, and clocked 6% gains (Rs 66) to Rs 1,199. While Ranbaxy shot up 3% (Rs 28) to Rs 1,036, Dr. Reddy's was up a per cent (Rs 13) at Rs 1,258.

Grasim, L&T and Gujarat Ambuja ended with gains at Rs 889 (up Rs 13), Rs 388 (up Rs 5) and Rs 272 (up Rs 6), respectively. ACC, however, slipped from higher levels to close down a rupee at Rs 219.

Bajaj firmed up in mid-morning deals, and closed 2% higher (Rs 18) at Rs 948. Tata Motors and Hero Honda ended off-gains each at Rs 406 (down Rs 2) and Rs 375 (down Rs 4), respectively.

Zee, on an unabated buying support, zoomed 9% (Rs 11) to Rs 132.