RIL shares climbed to a high of Rs 1,234.30 per share on the NSE, up 2.68 percent. The stock later pared some gains and was trading at Rs 1,207.90, up 0.5 percent, at around 1.30 pm.
Jio Platforms' IPO attracted investor interest at a faster pace than previous major public issues, including those of Bajaj Housing Finance, Hyundai Motor India and LG Electronics India, despite being the largest among the four.
The issue opened for subscription at 9 am on Wednesday and will close on October 23. It comprises a fresh issue of up to 27 crore shares, with no offer-for-sale component.
On Monday, Jio Platforms allotted shares worth about Rs 8,110 crore to 212 anchor investors at Rs 1,119 apiece, the upper end of the price band.
Bids for the anchor allocation exceeded Rs 2.5 lakh crore, more than 30 times the amount on offer.