The company's market valuation zoomed by Rs 20,328.1 crore to Rs 5,52,515.10 crore -- the highest ever of any listed company in the country.
The stock rose by 3.82 per cent to close at Rs 872.50 on BSE. Intra-day, it soared 4.25 per cent to Rs 876.20.
The stock of RIL, the most valued company of the country, was the biggest gainer among the 30-share Sensex components.
At NSE, shares of the company rose by 3.88 per cent to end at Rs 872.75.
Rally in the stock was instrumental in sending the 30- share key Sensex index higher by 348.23 points or 1.09 per cent to 32,182.22.