Money Market Instruments: 

 1. Treasury Bill: A treasury bill is an instrument of short term borrowing by the Government of India maturing in less than one year. They are also known as Zero-Coupon Bonds issued by Reserve Bank of India on behalf of the Central Government to meet its short term requirements of funds. They are issued in the form of a promissory note. They are highly liquid and issued at a price which is lower than their face value and repaid at par. Treasury bills are available for a minimum amount of Rs 25,000.

 2. Commercial Paper: Commercial paper is a short term unsecured promissory note, negotiable and transferable by endorsement and delivery with a fixed maturity period. It is issued by large and creditworthy companies to raise short term funds at lower rates of interest than market rates. It usually has a maturity period of 15 days to one year. The issuance of commercial paper is an alternative to bank borrowing for large companies that are generally considered to be financially strong. It is sold at a discount and redeemed at par. 

3. Call Money: Call money is a short term finance repayable on demand, with a maturity period of one day to fifteen days, used for inter-bank transactions. Commercial Banks have to maintain a minimum cash balance known as cash reserve ratio. Call money is a method by which banks borrow from each other.

 4. Certificate of Deposit: Certificates of deposit are unsecured, negotiable, short term instruments in bearer form, issued by Commercial Banks and Development Financial Institutions. They can be issued to individuals, Corporations and Companies during periods of tight liquidity when the deposit growth of banks is slow but the demand for credit is high. They help to mobilize a large amount of money for short periods. 

5. A Commercial Bill: A commercial bill is a Bill of Exchange used to finance the working capital requirements of business firms. It is a short term negotiable, self-liquidating instrument which is used to finance the credit sales of firms. When goods are sold on credit, the buyer becomes liable to make payment on a specific date in the future.