Option 1 -> Reserve Bank of India (RBI) regulates banks, monetary policy, and financial institutions, not stock brokers or securities markets.
Option 2 -> National Financial Reporting Authority (NFRA) oversees the auditing profession and accounting standards, not stock broker activities.
Option 3 -> Insurance Regulatory and Development Authority of India (IRDAI) regulates insurance companies and agents, not share market intermediaries.
Option 4 -> Securities and Exchange Board of India (SEBI) is the regulatory authority for securities markets in India and oversees stock brokers, protecting investor interests.
Hence, Securities and Exchange Board of India (SEBI) -> SEBI is the apex regulatory body for securities markets in India and has the authority to regulate stock brokers, investigate malpractices, and handle investor grievances related to share trading. Rajesh can file his complaint through SEBI's online complaint redressal system (SCORES) or approach SEBI directly -> correct