Eight of the 10 most valued domestic firms suffered a combined erosion of Rs 1,37,311.31 crore in market valuation last week, with Reliance Industries (RIL) taking the biggest knock.
Only Bharti Airtel and ITC from the top-10 list managed to close the week with gains.
RIL''s market cap plunged Rs 65,232.46 crore to Rs 9,24,855.56 crore.
The market valuation of HDFC Bank declined Rs 22,347.07 crore to Rs 4,87,083.88 crore and that of Hindustan Unilever Limited tanked Rs 13,192.26 crore to Rs 4,77,458.89 crore.
ICICI Bank''s market cap dropped Rs 9,770.06 crore to Rs 2,08,900.79 crore.
Infosys witnessed a decline of Rs 9,518.84 crore in valuation to reach Rs 2,77,814.09 crore while that of HDFC tumbled Rs 9,370.38 crore to Rs 2,83,293.70 crore.
The m-cap of Kotak Mahindra Bank slipped by Rs 7,805.2 crore to Rs 2,25,327.22 crore.
Tata Consultancy Services'' market valuation dipped Rs 75.04 crore to Rs 7,10,439 crore.
In contrast, Bharti Airtel added Rs 13,147.89 crore to its valuation to stand at Rs 3,02,292.43 crore.
ITC''s valuation also rose by Rs 7,744.11 crore to Rs 2,02,330.13 crore.
In the ranking of top-10 firms, RIL retained the number one spot, followed by TCS, HDFC Bank, HUL, Airtel, HDFC, Infosys, Kotak Mahindra Bank, ICICI Bank and ITC.
During the last week, the Sensex declined 544.97 points or 1.72 per cent.