General Utility Functions: The bank also performs several utility functions. Some of the most important utility functions of the banks may include the issue of drafts, letter of credits, etc., locker facility, underwriting of shares, dealing in foreign exchange, project reports, social welfare programs, other utility functions. The banks also provide several services like safe deposit locker facilities, safe custody facilities, and Demat accounts. The opening of Demat accounts allows the account holder to trade in the stock exchange or the money market directly. The customer that holds a Demat account can directly buy or sell shares from the capital market.