Hello VIkram

You can use Arihant publication book on clearing the BHU agricultural entrance exams. Its a good one with required details.

Go through the Banaras Hindu University : Entrance Exam website./ there you can get previous years ques papers which I think can help you understand the ques paper pattern and the syllabus covered.

BHU’s entrance exam is one of the tough entrance exams being conducted so go through the syllabus carefully and prepare for the paper well