Article 320 of the Constitution of India provides for consultation with the Commission on the principles to be followed in making appointments to civil services and posts and in making promotions and transfers from one service to another and on the suitability of candidates for such appointments, promotions or transfers.

In accordance with the Constitutional provisions, the Commission performs work relating to promotions/deputations [including short term contract (ISTC)]/ absorption to various Civil Services and posts of the Central Government and the Union Territories.  In accordance with the provisions of Article 321, the functions of the Commission are also extended in respect of promotions/ deputation (ISTC)/absorption to posts in Local Authorities, Body Corporates or Public Institutions, wherever the relevant Acts provide therefor.