The document summarizes the roles and functions of the Securities and Exchange Board of India (SEBI). It discusses that SEBI was established in 1988 by the Government of India and was upgraded to a statutory board in 1992. It describes SEBI's objectives to protect investor interests and promote fair practices in securities markets. The document outlines SEBI's regulatory functions such as registration of intermediaries and prohibition of unfair trade practices. It also discusses SEBI's developmental functions like investor education and research. The powers and departments of SEBI are presented. Recent regulatory cases involving Vedanta-Cairn and Deccan Chronicle Holdings are also summarized.