Hi,

Based on information provided by you the chances of you to get a seat in BSc agriculture or veterinary is very low if you belong to OC category. But if you have any kind of reservation the chances of you to get one is more. 

I would suggest you to mention about your category so that I can help you out better. 

You can easily get s convener seat im b pharmacy or Pharm d if you are interested.

All the best.