There are approximately 13 sectors in which IES services are utilitised. They are:

Central Power Engineering Services

Indian Telecommunication Services

Indian Navy Armaments Services

Border Roads Engineering Services

Indian Railway Services

Central Engineering Service for roads

Central Water Engineering

Geological Survey of India

Indian Ordinance Factory

Indian Supply Service

Defence Service Engineering Corps

Central Electrical and Mechanical Service

Indian Army Engineering Services

initially the Candidate is selected as an Assistant Executive Engineer or at an Assistant Director Level. After putting a work experience of 3-4 years, the Candidate will be promoted to Director or Executive Engineer. Once the Candidate puts up 13 years of Experience, he/she will be promoted to the position of Chief Engineer Level 2 or Joint General Manager. The same Candidate, after an experience of 20 years will be promoted to the position of Chief Engineer or Additional General Manager. After putting 30 years of experience, he/she will become a Senior General Manager and the final promotion is after 34 years of experience to the position of a Managing Director or Chairperson of the Govt. Organisation. So no w various designations have various roles in various sectors. What an Additional General Manager does in Indian Railways is different from what a Chief Engineer does in Indian Ordinance Factory. So we cannot generalise an IES officer's job role and function.

Hello,

The duty of an IAS officer is to manage the various types of  administrative matters of the government.which also includes   advising the police and ministers on various issues, maintaining of law and order,and also to issue some policies of State Government and Central Government, collecting revenues and not only this it includes various types of duty as its tough duty to do .

To reach that position a candidate must qualify UPSC civil services exam (UPSC CSE) .

that consists of three stages

– Prelims, Mains, and Interview. And includes the acadameic performance too