The countdown has officially begun for the most-awaited IPO to list on NSE and BSE. With the allotment process completed for the Jio Platforms IPO, the listing procedure is expected to be completed. Jio Platforms is set to make its stock market debut on October 28 at an IPO valuation of Rs 10.3 lakh crore. A 20% listing premium could push its market capitalisation beyond Rs 12.3 lakh crore.