■ On 24 th February 2020, the Bihar Government presented its Economic Survey 2019-20 in the Legislative Assembly. This is the 14 th Economic Survey, the first survey was presented in 2006-07 .
■ Agro-Climatic Zones Bihar falls in the Agro Climatic Zone IV , which is called Middle Gangetic Plains Region . Based on rainfall, temperature, soil and terrain, the state is divided into three agro-climatic zones, these are:
■ Bihar is primarily an agricultural state and almost all the economic activities are directly or indirectly dependent on soil. The soil covering most of Bihar is thick alluvium which shrouds the Siwalik and older tertiary rocks. The soil is mostly fresh loam replaced every year by intermittent deposition of silt, clay and sand by different rivers. It lacks phosphoric acid, nitrogen and humus but potash and lime are generally present in large amounts. There are three major types of soil in Bihar: