New Delhi, March 22 -- The combined market valuation of five of the top-10 most-valued firms last week eroded by Rs 1 lakh crore with the valuation of these five firms eroded by Rs 1,02,771.87 crore.

HDFC Bank took the biggest hit as its valuation tumbled Rs 56,124.48 crore to Rs 12,01,267.28 crore.

The gainers in the pack were Reliance Industries, Bharti Airtel, State Bank of India, Infosys, and Life Insurance Corporation of India (LIC) while the losers were HDFC Bank, ICICI Bank, Tata Consultancy Services (TCS), Bajaj Finance and Hindustan Unilever.

The market capitalisation (mcap) of TCS declined Rs 7,127.63 crore to Rs 8,64,940 crore while Infosys added Rs 2,473.79 crore taking its mcap to Rs 5,08,789.37 crore.

HDFC Bank's valuation...