In situations with high risks, credit might create further problems for the borrower. This is also known as a debt-trap. Taking credit involves an interest rate on the loan and if this is not paid back, then the borrower is forced to give up his collateral or asset used as the guarantee, to the lender. If a farmer takes a loan for crop production and the crop fails, loan payment becomes impossible. To repay the loan the farmer may sell a part of his land making the situation worse than before. Thus, in situations with high risks, if the risks affect a borrower badly, then he ends up losing more than he would have without the loan.

In a barter system where goods are directly exchanged without the use of money, double coincidence of wants is an essential feature. By serving as a medium of exchanges, money removes the need for double coincidence of wants and the difficulties associated with the barter system. For example, it is no longer necessary for the farmer to look for a book publisher who will buy his cereals at the same time sell him books. All he has to do is find a buyer for his cereals. If he has exchanged his cereals for money, he can purchase any goods or service which he needs. This is because money acts as a medium of exchange.

Banks keep small portion deposits as cash (15%) for themselves (to pay the depositors on demand). They use the major portion of the deposits to extend loans to those who need money. In this way banks mediate between those who have surplus money and those who need money.

“Reserve Bank of India” and “Guaranteed by the Government” are written on top.
In India, Reserve Bank of India issues currency notes on behalf of the central government. The statement means that the currency is authorized or guaranteed by the Central Government. That is, Indian law legalizes the use of rupee as a medium of payment that can not be refused in setting transaction in India. 

We need to expand formal sources of credit in India due to:→ To reduce dependence on informal sources of credit because the latter charge high interest rates and do not benefit the borrower much.
→ Cheap and affordable credit is essential for country’s development.
→ Banks and co-operatives should increase their lending particularly in rural areas.

The basic behind the SHGs is to provide a financial resource for the poor through organizing the rural poor especially women, into small Self Help Groups. They also provide timely loans at a responsible interest rate without collateral.
Thus, the main objectives of the SHGs are:
→ To organize rural poor especially women into small Self Help Groups.
→ To collect savings of their members.
→ To provide loans without collateral.
→ To provide timely loans for a variety of purposes.
→ To provide loans at responsible rate of interest and easy terms.
→ Provide platform to discuss and act on a variety of social issues such education, health, nutrition, domestic violence etc.

The banks might not be willing to lend certain borrowers due to the following reasons:
→ Banks require proper documents and collateral as security against loans. Some persons fail to meet these requirements.
→ The borrowers who have not repaid previous loans, the banks might not be willing to lend them further.
→ The banks might not be willing to lend those entrepreneurs who are going to invest in the business with high risks.
→ One of the principle objectives of a bank is to earn more profits after meeting a number of expenses. For this purpose it has to adopt judicious loan and investment policies which ensure fair and stable return on the funds. 

The Reserve Bank of India supervises the functions of banks in a number of ways:
→ The commercial banks are required to hold part of their cash reserves with their RBI. RBI ensures that the banks maintain a minimum cash balance out of the deposits they receive.
→ RBI observes that the banks give loans not just to profit making businesses and traders but also to small cultivators, small scale industries, small borrowers etc.
→ The commercial banks have to submit information to the RBI on how much they are lending, to whom, at what interest rate etc.
This is necessary to ensure equality in the economy of the country and protect especially small depositors, farmers, small scale industries, small borrowers etc. In this process RBI also acts as the lender of the last resort to the banks.