Securities And Exchange Board Of India - Subsection
Section 2(1)(d) in Securities and Exchange Board of India (Issue and Listing of Debt Securities) Regulations, 2008
(d)"book building" means a process undertaken prior to filing of prospectus with the Registrar of Companies by means of circulation of a notice, circular, advertisement or other document by which the demand for the debt securities proposed to be issued by an issuer is elicited and the price and quantity of such securities is assessed;