The IT major is followed by RIL (Rs 795,628.55 crore), HDFC Bank (Rs 624,362.11 crore), Hindustan Unilever (Rs 367,880.69 crore) and ITC (Rs 367,513.78 crore).
Software services major Tata Consultancy Services on Thursday reclaimed the status of the country's most valued firm by market valuation, surpassing Reliance Industries Ltd (RIL).
RIL shares have been on a downhill, falling for the fourth day in a row on Thursday.
In four days, the shares have plunged 10.79 per cent to Rs 1,255.15 on the BSE.
Following the plunge in its share price, RIL's market valuation dropped to Rs 795,628.55 crore on the BSE.
"Reliance Industries is leading the massive fall in Nifty. It fell down for the fourth consecutive day after touching lifetime highs of Rs 1,417," Samco Securities Head of Research Umesh Mehta said.
At the close of trade, the market capitalisation (m-cap) of TCS stood at Rs 813,779.67 crore, which is Rs 18,151.12 crore more than that of RIL's valuation.
The scrip of TCS closed at Rs 2,168.70, up 0.75 per cent on the BSE.
RIL and TCS have in the past also competed with each other for the number one position in terms of market capitalisation.
TCS is the country's most valued firm followed by RIL, HDFC Bank (Rs 624,362.11 crore), Hindustan Unilever (Rs 367,880.69 crore) and ITC (Rs 367,513.78 crore).
The m-cap figure of companies changes daily with stock price movement.
Photograph: PTI Photo
