Agriculture provides the basis of subsistence for the population by production of food and raw materials. Agriculture plays an important role to cover the primary aims of mankind like food, fibre, fuel, fodder etc. by optimum use of terrestrial resources. Traditionally, the inhabitants of each country or region depended on the bread-basket filled by the farmers i.e. everybody relied upon agriculture and was interested in its fate. During recent past, agriculture has faced tremendous challenges due to increased demand for food grains and agriculture related raw materials for allied sectors and it has created enormous job opportunities in teaching, research, extension, industries and financial institutions. The increase in output and productivity of agriculture could only be achieved by division of work and specialization.