Reliance on Thursday closed at Rs 2,060.65 on the BSE, up 2.82 per cent over the previous day's close. This gave the firm a m-cap of over Rs 13 trillion.
Together with the firm's partly-paid shares that were issued in the recent rights issue and are traded separately, the company had a combined m-cap of Rs 13.5 trillion or over $181 billion.
No Indian company has ever crossed an m-cap of Rs 13 trillion.
This is higher than Chevron's about $170 billion m-cap as well as likes of Oracle, Unilever, Bank of China, BHP Group, Royal Dutch Shell and SoftBank Group.
Reliance is the 10th highest m-cap company in Asia. China's Alibaba Group is ranked 7th globally.
The only other Indian company in the top 100 firms is Tata Consultancy Services. As per its closing price of Rs 2,170.75 on the BSE, TCS has an m-cap of Rs 8.14 trillion or about $109 billion.