The document summarizes the role and functions of the Securities and Exchange Board of India (SEBI). It states that SEBI was established in 1988 as the regulator of India's securities market, with its headquarters in Mumbai. SEBI's key responsibilities include protecting investors, promoting market development, and regulating securities markets. It has powers to regulate stock exchanges and other market participants like brokers. SEBI is divided into departments that oversee the primary market, intermediaries, and secondary market. The document also provides brief definitions of related terms like shares, equity shares, bonds, derivatives, debentures, and preference shares.