Mumbai: Fuelled by a rally in the market value of Coal India and TCS, the combined valuation of top eight Sensex companies surged 35,841 crore.

Reliance Industries and SBI, however, saw dip in their value, while TCS, ONGC, CIL, ITC, HDFC Bank, Infosys, NTPC and HUL witnessed rise in their m-cap. The 30-share Sensex gained 0.5 percent in the same period.

The market cap of CIL soared 10,391 crore to 2,31,747 crore. Shares of the PSU firm rallied 4.69 per cent.

TCS's value jumped 8,915 crore to 2,58,940 crore, while Infosys added 5,395 crore taking its m-cap to 1,40,419 crore. The market value of ONGC rose by 4,449 crore to 2,45,628 crore.

ITC added 2,585 crore to 2,07,693 crore in its m-cap, while the market value of NTPC moved up by 330 crore to 1,39,059 crore. The m-cap of HDFC Bank climbed 188 crore to 1,40,421 crore.

Similarly, the new entrant in the list Hindustan Unilever Ltd added 3,588 crore to end the week at 1,12,131 crore.

On the other hand, RIL saw an erosion of 10,680 crore from its m-cap which was 2,53,114 crore, while SBI lost 101 crore to 1,27,149 crore.

TCS topped the list of top-10 companies in terms of market cap, followed by RIL, ONGC, CIL, ITC, HDFC Bank, Infosys, NTPC, SBI and HUL.

TCS had surpassed Reliance Industries to become the country's most valued company.