The Civil Services Examination is held every year by the Union Public Service Commission. The exam is considered to be one of the toughest exams in the country. Civil Services Examination is held in two stages. The first stage is a preliminary examination; only after clearing this stage one is eligible for Main exam.
Animal Husbandry and Veterinary Science is considered to be one of the primary or you can say main subjects by the governing body UPSC. You can have this paper in your main exam. Usually, it seen that candidates who have studied this kind of subjects in their undergraduate or post-graduate level take up this course, but is surely open to all interested in this field.