THE way book-building works is simple. An issuer who plans a new issue of Rs 100 crore and above first appoints a lead manager, to be called a book-runner, who in turn appoints syndicate members. Potential investors—mainly mutual funds, financial institutions and FIIs—will give indications of interest (IOI) for a certain number of shares at a price. They will then submit a price-range based on the growth prospects and comparables to the syndicate members in a standard format to ensure uniformity and accuracy.