Hello Sanjeev

You can go through the link below and check the information about ICAR UG exam and the detailed syllabus from the information Bulletin of AIEEA UG 2018.

https://icarexam.net/Images/Bulletin/Information-Bulletin-AIEEA-UG-Re-Examination-2018.pdf

Syllabus will most probably remain same for the AIEEA UG 2019 exam also.

Hope this helps.
Good Luck!