Hi Amit,

UPSC will conduct the ESE or IES Mains exam on 18.10.2020 for the recruitment  in the categories of Civil/Mechanical/Electrical/Electronics & Telecommunication Engineering. Candidates recruited will get posted as Group A or Group B posts.

The selection process of UPSC IES Exam involves:

StageI:  Preliminary Exam

StageII: Mains Exam

StageIII: Personality Test

Note that each round is an elimination round and you need to clear oe round to proceed to another.

Follow this link to find syllabus and other relevant details:

https://upsc.gov.in/sites/default/files/Notice-ESEP-2020-Engl_0.pdf