The correct answer is C. Financial institutions like LFC, IDBI.
The organized sector of stock exchange is made up of financial institutions, such as banks, insurance companies, and mutual funds. These institutions provide liquidity to the market by buying and selling securities. They also provide investment advice and research to investors.
Commercial banks are not considered to be part of the organized sector of stock exchange because they do not directly participate in the trading of securities. However, they do provide indirect support to the market by lending money to investors and issuing guarantees on securities.
Investors in securities are individuals or companies that buy and sell securities. They can be either retail investors or institutional investors. Retail investors are individuals who invest their own money in securities. Institutional investors are companies or organizations that invest money on behalf of others, such as pension funds, endowments, and foundations.
Other financial institutions, such as hedge funds and private equity firms, are also not considered to be part of the organized sector of stock exchange. However, they do play an important role in the market by providing liquidity and investment opportunities.