Auto-tech platform CarDekho’s parent Girnar Software is preparing to file draft papers for an initial public offering (IPO) in the July-September quarter, targeting an issue size of up to Rs 3,000 crore, said people aware of the matter.The IPO is expected to be largely an offer for sale (OFS) by existing shareholders, with a fresh issue of about Rs 300 crore. The Jaipur-based company is eyeing a valuation of around Rs 13,000 crore as per early