Food delivery giant Swiggy is set to launch its initial public offering (IPO) and make its D-street debut on Wednesday. The company’s IPO, backed by SoftBank, will be open for public subscription from November 6 to November 8. Ahead of the IPO, on Monday the shares of the company were trading at a grey market premium (GMP) of Rs 405, commanding a premium of nearly 3.85 per cent. Grey market is an unofficial market for the pre-IPO and no regulatory bodies are involved at this phase.