Jio Platforms files IPO papers, issue to open on October 21. Jio Platforms, Reliance Industries' digital services arm, has filed its Red Herring Prospectus (RHP) for its initial public offering (IPO). The public issue will open for subscription on October 21 and close on October 23, while bidding for anchor investors is scheduled for October 19. The IPO will comprise a fresh issue of up to 27 crore shares.