The Securities and Exchange Board of India (SEBI) is the regulatory body for the securities market in India. It was established to protect investor interests, develop the market, and ensure fair practices. SEBI oversees stock exchanges, brokers, mutual funds, and listed companies. Its core functions include regulating insider trading, ensuring proper disclosures, and investigating frauds. SEBI mandates companies to publish quarterly results, disclose shareholding patterns, and follow corporate governance norms. It also regulates IPOs, takeover bids, and mutual fund operations. SEBI introduces guidelines to increase transparency—for example, requiring margin money to prevent speculation. It also runs investor education programs to promote financial literacy. Through circulars, press releases, and policy updates, SEBI regularly updates market rules. This module explains SEBI’s structure, powers, and major regulations impacting traders and investors. Understanding SEBI’s role is essential for anyone entering the stock market, as it ensures that participants operate in a safe, fair, and efficient environment.