The BSE's IT index was down nearly 6 per cent, with a heavy plunge in the share prices of Infosys, TCS, Wipro, Tech Mahindra and HCL Tech.

All the three top IT companies - Tata Consultancy Services (TCS), Wipro and Infosys - witnessed a huge fall in their share prices in morning trade on the BSE.

The 30-share Bombay Stock Exchange benchmark eased worries of panicking investors by checking through-the-day losses in a highly volatile day and closed at 17,305.87, down 387.31 points, or 2.19 per cent - its 14-month low. Nifty closed at 5,224.25, down 107.75 points. How Sensex fared during the day

Blue-chips like Reliance Industries, TCS, Tata Steel and Infosys plunged into deep red on stock market on Friday, as investors dumped stocks with significant export exposure after an overnight sell-off in the US market.

The Bombay Stock Exchange benchmark Sensex plunges on heavy selling by funds and investors in line with melting global markets amid worries over the US economy and the European debt crisis. Market leaders RIL and Infosys fail to arrest the decline. At 12.30 pm, Sensex was trading down 685.80 points at 17,007.38.

Quick takes on major events of the last fortnight

Share prices of many companies, including blue chips like Reliance Industries and TCS, on Friday displayed weird movements with huge gains and losses of up to 20 per cent at BSE due to an early morning technical glitch.

Shares of software major TCS ended more than 2 per cent higher on the bourses on Friday today after surging 20 per cent in the early morning trade on the BSE due to a technical glitch.

The BSE benchmark Sensex Friday fell 56points on weak global cues and fund-selling on fears of more interest ratehikes to curb high inflation, even as smart gains by industry leader RIL andTCS capped its losses.

The total revenue of the country's biggest software exporter grew 31.4 per cent to Rs 10,797 crore for the period under review.

Private sector lender HDFC Bank announces sub-division of stocks in the ratio of 1:5 in order to encourage wider retail participation in the company.

Fast moving consumer goods, realty, metal, capital goods and banking counters were the major gainers of the week as most of the indices ended higher by 1.59 per cent 4.24 per cent.

India's largest software company TCS on Wednesday briefly toppled ONGC as the country's third most valued company with its market capitalisation soaring to over Rs 2.31 lakh crore, driven by a spurt in share price.

The BSE Sensex edged high 12.47 points or 0.07 per cent to end at 18,531.28, while the S&P CNX Nifty fell 6.70 points, or 0.12 per cent, to finish at 5,544.75.

TCS shares finished 2.2 per cent lower on Thursday at Rs 1,191, after investors booked profit in the counter.

Country's largest software company Tata Consultancy Services posts an increase of 31.3 per cent in quarterly revenues at Rs 10,157 crore.

Erasing initial gains, the BSE Sensex on Monday dropped about 296 points to 19,091 in a volatile session on funds selling fundamentally strong stocks led by Infosys Technologies amid a weak global trend.

Having jumped 2.45 per cent in the previous two sessions, TCS started the day on a strong note and rose 2.32 per cent to an all-time peak of Rs 1,126.90 on BSE.

After a big-bang debut on the stock exchange in the morning on Thursday, the state-owned coal major registered m-cap of Rs 2.03 lakh crore withing first hour of trade.

Indian markets were trading marginally higher Friday, with the Sensex up 20.24 points, or 0.10 per cent, at 20,280.82. The BSE 30-share index opened at 20,334.14.