The combined market capitalisation (m-cap) of six of the country's top-10 firms went down by Rs 42,791 crore during the past week, with two of the country's top lenders -- SBI and ICICI Bank -- bearing the maximum loss.
Amid a weak stock market, which fell by 458 points, or 2.29%, last week, the market valuation of State Bank of India also declined by Rs 21,256.29 crore to Rs 1,73,768.19 crore as on Friday's trade.
Similarly, private sector lender ICICI Bank too saw its m-cap diminishing by Rs 7,385.32 crore to Rs 1,28,343.91 crore.
During the last week, SBI's scrip plunged 10.89 per cent, while ICICI's tanked by 5.44 per cent on the Bombay Stock Exchange.
Among the top-10 firms, RIL, ONGC, Infosys Technologies and NTPC led the gainers front, while SBI, ICICI, TCS, Coal India, ITC and Bharti Airtel emerged as losers in the list which is decided as per their market capitalisation.
Top private telco Bharti Airtel also saw its valuation eroding by Rs 5,639.31 crore to Rs 1,25,659.94 crore.
IT major TCS too lost Rs 3,933.97 crore from its m-cap which stood at Rs 2,10,467.5 crore.
With an m-cap of Rs 2,00,039.12 crore, coal behemoth CIL witnessed an erosion of Rs 3,537.16 crore from its valuation.
FMCG honcho ITC also lost Rs 1,039.36 crore from its kitty to take its m-cap to Rs 1,30,919.79 crore.
Meanwhile, country's most valued corporate firm Reliance Industries added Rs 5,661.62 crore to take its m-cap to Rs 3,35,017 crore, while state-run ONGC saw its valuation swelling by Rs 256.66 crore to Rs 2,82,608.89 crore.
With an m-cap of Rs 1,80,681.96 crore, IT bellwether Infosys Technologies added Rs 1,409.27 crore to its valuation.
Power major NTPC too added Rs 5,895.5 crore to take its valuation to Rs 1,58,477.74 crore.