HCL Tech's shares tumbled 8.78 percent to Rs 1,510.60 on the BSE. At the NSE, the stock plunged 8.74 percent to Rs 1,511.
The company's scrip was the biggest loser among the 50-Nifty stocks.
The stock witnessed selling pressure, in line with other IT stocks, after the company missed estimates in earnings.
HCL Technologies on Friday reported 32.3 percent rise in consolidated net profit at Rs 1,873 crore for the first quarter ended on September 30 on the back of strong growth in Europe and business services.
The company had posted a net profit of Rs 1,416 crore in the year-ago period, it said in a BSE filing.
Consolidated revenues grew 9.7 percent at Rs 8,735 crore in the July-September quarter of this fiscal as against Rs 7,961 crore in the same quarter of the previous fiscal.
The firm follows July-June as the fiscal year.
In dollar terms, net profits rose by 36.1 percent to USD 307.2 million in the first quarter of the current fiscal as against USD 225.6 million in the year-ago period.

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