Bihar Administrative Service

Bihar Administrative Service, often abbreviated to as BAS, is the administrative civil service of the Government of Bihar comprising Group A and Group B posts. It is also the feeder service for Indian Administrative Service in the state.

BAS officers hold various posts at sub-divisional, district, divisional and state level including conducting revenue administration and maintaining law and order. The General Administrative Department of the Government of Bihar is the cadre-controlling authority of the service. Along with the Bihar Police Service (BPS) and the Bihar Forest Service (BFS), the BAS is one of the three feeder services to its respective All India Services.

Recruitment
Entire recruitment to the service is made on the basis of an annual competitive examination conducted by Bihar Public Service Commission called BAS officers. There is no provision for entry into BAS through promotion from Circle Officers of Bihar Revenue Service (BRS) unlike in most states where Tehsildar and equivalent revenue officers are promoted into their state administrative service. BAS officers are appointed by the Governor of Bihar.