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  • Tata Consultancy Services (TCS) is part of the diversified Tata Group that had a combined turnover of $103 billion in financial year 2015-16. TCS accounts for about half of the 6 lakh employees who work for the Group. Employees of Tata Consultancy Services (TCS) work inside the company headquarters in Mumbai March 14, 2013.Reuters file
  • Shares of Reliance Industries Ltd. (RIL) hit a new 52-week-high of Rs. 1,109.20 on Friday on continued buzz over the company's telecom arm Reliance Jio Infocomm's mobile services launch. A man walks past a Reliance Industries Limited sign board installed on a road divider in the western Indian city of Gandhinagar January 17, 2014.Reuters file
  • HDFC Bank headquarters in Mumbai, India, Dec.4, 2015. It is India's second-largest private sector lender by assets, after ICICI Bank.Reuters File
  • A man talks on his mobile phone as he walks past an ITC office building in Kolkata September 4, 2012. The company is India's largest cigarette manufacturer and has also interests in hotels, retail, paper-boards and agriculture.Reuters file
  • Employees walk along a corridor in the Infosys campus in Bengaluru, September 23, 2014. The company will be declaring its second quarter results on Oct. 14; the management commentary will be keenly watched as the company's CEO had hinted at a lowering revenue guidance for the current fiscal for the second time in a span of three months over adverse business conditions.Reuters File

India's top 10 listed companies added Rs 33,983 crore (about $5 billion) in market capitalisation during the week ended September 23. Mukesh Ambani-controlled Reliance Industries Ltd. (RIL) was the top gainer, adding Rs 8,853 crore riding the bullish sentiments over Reliance Jio Infocomm's mobile services foray.

Tata Consultancy Services (TCS), India's largest information technology services exporter, was the second biggest gainer at Rs 7,123 crore followed by private sector lender HDFC Bank that added Rs 3,838 crore.

TCS retained its position as the most-valued company with a market capitalisation of Rs 4,72,370 crore (about $71 billion), followed by Reliance Industries Ltd. (RIL) that gained for the third week in a row to end with a valuation of Rs 3,57,698 crore. The company's share price hit a new 52-week-high of Rs 1,109.20 on Friday.

HDFC Bank's valuation stood at Rs 3,33,845 crore, followed by cigarette maker ITC whose market capitalisation declined Rs 7,908 crore to Rs 3,07,165 crore. HDFC Bank stock closed at Rs 1,313.15 on the BSE, while ITC shares ended at Rs 253.85 apiece. Recently, HDFC Bank was upgraded by brokerage CLSA on the basis of the lender's potential for higher growth in the coming years.

Infosys, India's second-largest information technology software services exporter, saw an erosion of Rs 3,985 crore to end with a market capitalisation of Rs 2,39,571 crore. The Bengaluru-based company will be declaring its second quarter results on October 14. Investors and analysts would keenly watch the management commentary after CEO Vishal Sikka hinted at lowering the revenue guidance for the second time this fiscal over persisting weak global conditions.

Mortgage lender HDFC ended the week with a gain of Rs 3,930 crore to take the valuation to Rs 2,25,595 crore.

Other most-valued listed companies of India include largest coal miner Coal India Ltd., state-run energy company ONGC and fast-moving consumer goods company Hindustan Unilever Ltd.

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