Solar91 Cleantech, a Jaipur-based solar EPC service provider, has filed its draft red herring prospectus (DRHP) with the Bombay Stock Exchange (BSE) to launch an initial public offering (IPO) on the SME platform. The IPO will feature a fresh issue of 54.36 lakh shares at a face value of Rs 10 each, totalling approximately Rs 100 crore. Narnolia Financial Services has been appointed as the lead manager for the issue, while Maashitla Securities will serve as the registrar.