Hello Aspirant,
If you want to become a doctor but you're now in 12th arts, all you have to do is restart your 11th class all over again with bio science stream.
You can do it from nios or you can write a application to your school regarding the fact.

My suggestion would be go to a nios take up science stream.

Good luck

Regards,
Careers 360

Hello Aspirant,

yes you can join 11th science in nios if you do not want to continue studying arts,