Historical evolution of human nature explains that different stages of economic development have been financed out of different sources. Under this theoretical background capitalist, precapitalist and primitive accumulation financing of agricultural development of Saran district in north-west Bihar has been analysed. It has been found that primitive accumulation financing is the dominant source. The capitalist approach of financing agricultural development of credit institutions needs to be changed to remove defects like benami transactions, overdues and checking of funds.