Hey!

The most important banking exam for agricultural graduate is IBPS SO for becoming Agricultural field Officer(AFO).

While doing B.Sc agriculture it is preferred to prepare for banking exams side by side as it will save your time further and will help you to make yourself more productive day by day. Many graduates crack exam this exam just after the completion of their graduation as the IBPS SO exam  IBPS SO is held in Dec and Jan months.

For coaching you can go for it when you will be having your day off or after college hours.

For details you can visit this provided link https://www.google.co.in/amp/s/competition.careers360.com/articles/ibps-so-exam-pattern/amp?espv=1

Hope this helps.