Over the past week, the stock market benchmark Sensex lost 530.66 points or 2.5 per cent to 20,666.15.
While TCS, RIL, ITC, ONGC, CIL, HDFC Bank, Bharti, HUL and HDFC saw losses in their market value, Infosys on the other hand made gains.
The m-cap of ONGC plummeted by Rs 10,695 crore to Rs 2,37,243 crore, making it the worst performer among the top-10 companies.
After ONGC, another energy major RIL saw its valuation plunge Rs 10,662 crore to Rs 2,82,872 crore.
FMCG giant ITC's value tanked Rs 8,759 crore to Rs 2,53,289 crore, while telecom major Bharti Airtel suffered a loss of Rs 8,535 crore to Rs 1,37,510 crore from its m-cap.
The market-cap of mortgage lender HDFC slipped by Rs 6,739 crore to Rs 1,26,128 crore, while HDFC Bank took a hit of Rs 6,614 crore to Rs 1,56,196 crore in its value.
HUL's value dipped by Rs 5,103 crore to Rs 1,26,456 crore, while the m-cap of TCS fell by Rs 1,312 crore to Rs 4,09,922 crore and that of Coal India went down by Rs 568 crore to Rs 1,83,964 crore.
In contrast, the m-cap of Infosys rose by Rs 4,479 crore to Rs 1,92,799 crore.
The list of top-10 companies was led by TCS, RIL, ITC, ONGC, Infosys, CIL, HDFC Bank, Bharti, HUL and HDFC.