New Delhi: Eight of the 10 most valued Indian companies together suffered an erosion of 41,660 crore in their market valuation last week, with Mukesh Ambani-led Reliance Industries (RIL) alone accounting for over 15,000 crore.

Only HDFC and Infosys added to their market capitalisation (m-cap) in the week ended Friday.

The valuation of RIL plunged by 15,180.46 crore to 7,94,074.52 crore, while that of Tata Consultancy Services (TCS) dipped by 6,278.86 crore to 7,89,949.92 crore. HDFC Bank’s m-cap dropped 7,778.30 crore to 5,50,915.33 crore. The valuation of ITC dived 4,219.81 crore to 3,75,441.05 crore.

FMCG major Hindustan Unilever (HUL) saw its valuation slump by 1,904.89 crore to 3,52,869.55 crore, while Maruti Suzuki India tanked by 3,011.74 crore to Rs2,60,781.18 crore.

Public sector lender State Bank of India (SBI) witnessed a fall of 1,294.07 crore in its valuation to 2,59,170.02 crore and Kotak Bank saw an erosion of 1,992.38 crore from its m-cap to 2,35,939.35 crore.

On the contrary, HDFC’s m-cap rose by 238.24 crore to 3,25,872.37 crore and technology giant Infosys’ valuation surged by 904.96 crore to 3,21,163.52 crore.

In the ranking of top-10 firms, RIL stood at number one position followed by TCS, HDFC Bank, ITC, HUL, HDFC, Infosys, Maruti, SBI and Kotak Mahindra Bank. Benchmark Sensex lost some 300 points or 0.77% during the week.