INDIAN ADMINISTRATIVE SERVICE (IAS)
IAS is topmost service in the civil services exam. Among 100 vacancies only those who secure their position under could make into the IAS service. IAS officers holds several key positions in the government. During the normal course of an IAS career, they are posted at the Sub-Division, and District, and serve in the State Secretariat or as Head of Departments. They might be posted in the Centre.
The work definition of an IAS officer would encompass framing, modifying, interpreting and Implementation of policy matters in the Government of India (i.e. in the ministries). Implementation entails disbursement of funds, which calls for personal supervision. In each Ministry you will supervise the allotment and utilization of funds by the field officers in your Ministry.