I am doing B.Sc in agriculture. I am willing to take admission in a good law university. How should I prepare for the same?

Most law schools require a Bachelor's degree for admittance. Although no specific degree or set of courses is required for admission, certain courses can be helpful. According to the Bureau of Labor Statistics, classes in English, public speaking, government, history, economics and mathematics are u

It depends on the university you want to apply to. Every university will be having it's own criteria of examination and it's own patterns. The basic things you need to prepare would be English, verbal and nonverbal and nonverbal reasoning, general knowledge etc.