The oil-to-telecom conglomerate's market capitalisation (m-cap) zoomed to Rs 9,99,045 crore (USD 139 billion) during the trade on the BSE. However, at close of trade it came down to Rs 9,88,179.79 crore (nearly USD 138 billion).
The company is still ahead of British energy major BP Plc in terms of market valuation.
BP Plc's m-cap was at USD 131 billion in pre-market trade at NYSE.
The company's stock rose 0.98 per cent to a record peak of Rs 1,576 in intra-day on the BSE. Later, it however, closed marginally lower by 0.12 per cent at Rs 1,558.85.
So far this year, RIL's share price has jumped 38.46 per cent.
Reliance Industries Ltd (RIL) last week achieved another milestone, becoming the first Indian firm to hit m-cap of Rs 9.5 lakh crore.
Also, last week the company surpassed BP Plc in terms of market valuation.
In October, RIL hit the Rs 9 lakh crore m-cap mark in intra-day trade, first by any listed company.
In August 2018, it became the first Indian firm to cross the Rs 8 lakh crore m-cap mark.
TCS is the country's second most valued firm with a market valuation of Rs 7,68,075.63 crore followed by HDFC Bank with a m-cap of Rs 6,97,707.03 crore, Hindustan Unilever (Rs 4,46,211.06 crore) and HDFC (Rs 3,97,958.39 crore).
The m-cap figures of companies change daily with stock price movement. SUM
ANU