The Indian Administrative Service is the administrative arm of the All India Services. Considered the premier civil service of India, the IAS is one of the three arms of the All India Services along with the Indian Police Service and the Indian Forest Services.

IAS is the short form of Indian Administrative Service. It is one of the prestigious services among the 24 services like IPS, IFS etc for the which the UPSC conducts Civil Services Examination (CSE) for selecting the candidates.