Hey Manish,

As Botany and Zoology are togetherly called Biology. And also you are having Biology in +2 CBSE . So, I think it's not a big deal.

Again as you are saying, you have already some farm experience regarding this job. So, it's good for you that you have already some practically experience . It will help you to work better in this field.

So, you may apply for it....

All the best!