Amid bullish stock market, the cumulative market capitalisation of eight of the top 10 companies grew by Rs 39,723 crore, with state-run Coal India Ltd alone adding Rs 8,432 crore.

However, corporate leader Reliance Industries Ltd and power producer NTPC saw erosion in their market value.

The BSE 30-scrip benchmark index Sensex rose by 1.38% to end the trading week at 16,949.83 on Friday.

CIL m-cap advanced Rs 8,432 crore at Rs 2,14,724 crore, becoming the top gainer among the top 10 firms.

IT bellwether TCS was the second biggest gainer as its m-cap rose by Rs 7,887 crore at Rs 2,48,850 crore.

FMCG firm ITC added Rs 6,568 crore taking its value to Rs 1,93,975 crore, while the m-cap of Infosys surged Rs 5,791 crore to Rs 1,44,708 crore.

ONGC saw a spurt of Rs 5,561 crore in its market worth which stood at Rs 2,27,362 crore, while Bharti Airtel's valuation moved up Rs 3,057 crore to Rs 1,18,444 crore. HDFC Bank added Rs 2,243 crore at Rs 1,28,694 crore and SBI's worth climbed Rs 184 crore to Rs 1,46,475 crore.

In contrast to the gains made by these companies, RIL saw an erosion of Rs 917 crore from its m-cap which was at Rs 2,37,928 crore, while NTPC lost Rs 4,659 crore from its value which was stood at Rs 1,23,764 crore.

TCS retained the number one position on the list, while RIL was at second place, followed by ONGC, CIL, ITC, SBI, Infosys, HDFC Bank, NTPC and Bharti.