Biocon stock climbed 2.93 per cent to Rs 460 on the BSE. On the NSE, it was up 3 per cent to Rs 460.
The company had filed its draft red herring prospectus (DRHP) with Sebi through its lead merchant banker Axis Capital in April.
Securities and Exchange Board of India (Sebi) issued its final observations on the draft offer documents on June 12, which is necessary for companies to launch any public offer.
While the company did not comment on the amount to be raised through the IPO, sources said it could be around Rs 600 crore.
Of the total shares on offer, 50 per cent has been reserved for qualified institutional buyers, 15 per cent for high net worth individuals and the rest for retail investors.
