Taking a cue from the weak global markets, the Sensex today resumed below the 6,400-mark with a loss of 128 points at 6,340. The market was extremely bearish through the trading session as selling was seen across-the-board, with tech stocks leading the downfall on the muted next quarter guidance by Infosys.After hovering around 190-points loss in the afternoon trades, fresh bout of selling pressure in late noon trades dragged the Sensex below the 6,250-mark to a low of 6,232.The Sensex finally wrapped up the session with a huge slump of 220 points at 6,248. The Nifty, too, was under the bear hug and lost 69 points to 1,956.Infosys, which slid sharply at tech-heavy Nasdaq yesterday, crashed nearly 7% (Rs 146) to Rs 1,957. While Satyam slumped 6% (Rs 25) to Rs 383, Wipro dropped 6.29% (Rs 41) to Rs 605.Reliance scaled down 2.89% (Rs 16) to Rs 530. While ONGC dropped 3.48% (Rs 30) to Rs 847, ITC lost 2.73% (Rs 39) to Rs 1,377.SBI fell 3.66% (Rs 24) to Rs 622. While HDFC Bank lost nearly 5% (Rs 28) to Rs 534, ICICI Bank shed 2.30% (Rs 9) to Rs 403.Cipla crashed 6% (Rs 15) to Rs 234. While Dr. Reddy's declined 3.41% (Rs 25) to Rs 712, Ranbaxy shed 3.43% (Rs 34) to Rs 952.Grasim dipped 1.76% (Rs 21) to Rs 1,185. While ACC was down 1.43% (Rs 5) at Rs 362, Gujarat Ambuja slipped a per cent (Rs 4) to Rs 421.Tata Motors fell 3.37% (Rs 14) to Rs 410. While Maruti slipped 1.64% (Rs 7) to Rs 406, Bajaj came off its lows to end marginally weak at Rs 1,080 - down Rs 5. Hero Honda, however, ended in the green with a rupee gain at Rs 515.Hindalco tumbled 5.43% (Rs 72) to Rs 1,257. HDFC at Rs 702 (down Rs 20 or 2.84%), Tisco at Rs 366 (down Rs 15 or 3.85%), Tata Power at Rs 339 (down Rs 11 or 3.28%) and Zee at Rs 132 (down Rs 4 or 3.20%) witnessed relentless selling pressure.