Loans can be classified based on time as short term (6-18 months), medium term (15 months-5 years), or long term (5-20 years). They can also be classified based on purpose. Common sources of farm loans include relatives, moneylenders, traders, cooperatives, and commercial banks. For a farm loan to be sanctioned, a farmer must submit an application providing details of their farm and finances, which the bank will verify by visiting the farm and checking records. If found eligible based on character, repayment ability, and other criteria, the loan will be sanctioned upon submission of documents and disbursed in phases, with follow up visits to ensure proper use.