Agriculture is the key to the overall development of the State economy. Agriculture is the backbone of Bihar’s economy 81% of workforce and generating nearly 42% of the State Domestic Product. The percentage of population employed in agriculture production system in Bihar is estimated to 81%, which s much higher than the national average. Nearly 42 per cent of GDP of the state (2004-05) has been from agriculture sector (including forestry and fishing). The agriculture production can only be increased to some extent through enhanced cropping intensity, change in cropping pattern, improvement in seeds of high yielding varieties, cultivation practices and with the availability of better post harvest technology etc. State Govt. is trying to re-orient agriculture through diversification policy and other measures.