The combined market valuation of 6 of the top-10 most valued companies, led by Reliance Industries Ltd (RIL), rose by Rs 31,249.36 crore last week.

RIL, Tata Consultancy Services (TCS), HDFC Bank, SBI, Maruti Suzuki India and Infosys emerged as gainers from the top 10 list, while ITC, Hindustan Unilever Ltd (HUL), HDFC and ONGC suffered losses in their market capitalisation (m- cap) for the week ended Friday.

The m-cap of RIL surged Rs 16,592.63 crore to Rs 5,76,118.96 crore, becoming the biggest gainer.

Maruti's valuation surged Rs 5,309.06 crore to Rs 2,51,955.92 crore and that of State Bank of India (SBI) rallied by Rs 3,625.57 crore to Rs 2,91,245.49 crore.

The m-cap of Infosys rose by Rs 2,377.39 crore to Rs 2,23,026.56 crore and that of HDFC Bank went up by Rs 2,042.99 crore to Rs 4,72,497.75 crore.

TCS's valuation moved up by Rs 1,301.72 crore to Rs 5,18,791.08 crore.

On the other hand, the m-cap of ONGC slumped Rs 17,068.21 crore to Rs 2,27,789.92 crore.

ITC's m-cap dropped by Rs 4,630.5 crore to Rs 3,13,837.87 crore and that of HUL declined by Rs 2,629.84 crore to Rs 2,76,750.23 crore.

The market cap of HDFC slipped Rs 940.99 crore to Rs 2,71,461.32 crore.

In the ranking of top-10 firms, RIL led the chart followed by TCS, HDFC Bank, ITC, SBI, HUL, HDFC, Maruti, ONGC and Infosys.

Over the last week, the Sensex eked out gains of 28.24 points, or 0.08 per cent, but Nifty dropped 38.15 points, or 0.36 per cent.