Merchant banking originated in the 13th century when traders acted as bankers, financing wars and trades. Merchant bankers advise companies on capital structure, pricing, and project evaluation when managing public issues. They are responsible for appointing advisors, marketing the issue, and obtaining necessary approvals. When selecting a merchant bank, companies consider factors like ethics, reputation, resources, and past performance; and when selecting clients, they consider track record, management, and project viability. The key objectives of merchant banks are providing long-term funds, project advice, and managing portfolios and issues. Regulations require merchant banks to act with integrity and in clients' best interests.