While Reliance Industries Limited (RIL), ITC, ONGC, Coal India (CIL), HDFC Bank and Hindustan Unilever Limited (HUL) saw losses in their market capitalisation, Tata Consultancy Services (TCS), Infosys, Bharti Airtel and HDFC witnessed addition in their valuation in an overall weak stock market where the BSE benchmark Sensex plunged nearly 600 points.

FMCG major ITC saw a steep erosion of Rs 28,012 crore to Rs 2,63,170 crore in its m-cap and was the top loser among the top-10 firms. Shares of the company also took a hit, falling 9.6 per cent to Rs 333.05.

After ITC, state-run energy giant ONGC took the second biggest hit in its market value that slumped Rs 22,929 crore to Rs 2,37,115 crore.

Coal India's value dipped Rs 17,591 crore to Rs 1,60,783 crore, while RIL lost Rs 10,502 crore to Rs 2,77,512 crore from its market cap.

The valuation of HUL plunged Rs 10,344 crore to Rs 1,33,050 crore, while that of HDFC Bank slipped by Rs 3,271 crore to Rs 1,50,647 crore. In contrast, TCS added Rs 14,268 crore to Rs 3,61,175 crore in its m-cap, while Infosys' value climbed Rs 5,237 crore to Rs 1,72,655 crore.

The market valuation of Bharti Airtel soared by

Rs 2,938 crore to Rs 1,37,790 crore and the m-cap of

mortgage lender HDFC jumped Rs 325 crore to Rs 1,25,206 crore.

In the ranking of top-10 firms, TCS stood at the number position, followed by RIL, ITC, ONGC, Infosys, CIL, HDFC Bank, Bharti, HUL and HDFC.