Five of the 10 most valued firms added a total 56,877.12 crore in market valuation last week, led by IT major Tata Consultancy Services (TCS).

The market capitalisation (m-cap) of TCS jumped 26,360.5 crore to 7,96,612.51 crore at close on Friday.

Reliance Industries Limited (RIL), ICICI Bank, Kotak Mahindra Bank and Infosys were among the gainers. HDFC Bank, HUL, HDFC, ITC and State Bank of India (SBI) suffered losses in their m-cap in the week ended on Friday.

Kotak Mahindra Bank's valuation climbed 11,443.51 crore to 3,19,864.26 crore and that of ICICI Bank by 8,329.51 crore to 3,39,341.06 crore.

The market cap of Infosys rose by 8,176.24 crore to 3,04,543.53 crore and of RIL by 2,567.36 crore to 9,85,707.52 crore.

Among losers, SBI was the worst hit with its market valuation dropping by 19,678.8 crore to 2,85,409.08 crore.

HDFC Bank's m-cap dropped by 15,359 crore to 6,82,367.73 crore and that of Housing Development Finance Corporation (HDFC) by 5,521.67 crore to 3,91,269.72 crore.

The valuation of ITC fell 3,748.24 crore to 2,98,998.76 crore and of Hindustan Unilever Limited (HUL) by 2,294.7 crore to 4,38,482.68 crore.

The list of 10 most valuable firms was topped by RIL followed by TCS, HDFC Bank, HUL, HDFC, ICICI Bank, Kotak Mahindra Bank, Infosys, ITC and SBI in that order.

Last week, the BSE 30-share index dropped 348.66 points or 0.85%.