Hello aspirant,

You'll find the full syllabus in pdf form here-

https://www.icar.org.in/content/syllabus-aieea-ug-aieea-pg-and-aice-jrfsrfpgs-2019

ICAR exam syllabus contains: physics (20 units), chemistry (35 units), biology (9 units), mathematics (10 units), agriculture (4 units). Depending upon which courses you plan to study after 12th class, you will appear in PCM/PCB/PCA/ABC subjects.