Swiggy's IPO will open for bids from investors between November 6 and 8.The IPO will be a combination of fresh issue of shares and offer for sale (OFS) from existing shares.Swiggy aims to raise Rs 4,499 crore through the fresh issue of shares and expects a valuation of around $11 billion.Key investors selling their shares in the IPO include Accel, Elevation Capital, Prosus, Tencent, and Norwest.