One year is enough to prepare well for ICAR (Indian Council of Agricultural Research) UG Exam, as conducted by NTA (National Testing Agency).

The difficulty level of ICAR Paper is slightly more as compared to NEET UG, but a bit easier as compared to JEE Mains (Physics and Chemistry part). However, selection in ICAR Colleges is easier as compared to government medical colleges via NEET (as ratio of number of NEET UG candidates to govt medical seats is extremely high).

HOW TO PREPARE?

I would suggest you to d o your preparation according to NEET UG. If you do well in NEET UG, your performance in ICAR is also expected to be good. Just few days before ICAR Exam, go through it's previous year papers.

If you want to prepare online, you may take a look at the NEET UG Courses as offered by Careers360 (with benefits like AI Learning, Personalised Timetables, Mock Tests, 24x7 Doubt Support, etc at affordable rates) - Careers360 NEET Solution: Complete Preparation and Study Materials for Students

Preparing for NEET UG will make you prepared for NEET as well as ICAR UG Exam.

WHAT RANK TO AIM FOR?

To get the most sought after course (i.e. BSc Agriculture) in good colleges (like Indian Agricultural Research Institute, New Delhi, Punjab Agricultural University, Ludhiana, etc), you must aim for an All India Rank of 200. However, even with a rank of 1000-2000, you can easily get BSc, Agriculture in any Govt. ICAR College in India.