Which course should I pursue to make my career in the drawing and art field?

After completing 12th, you can go for a degree in fine arts and from there you can move on to become a painter or an artist in your field. You can refer to the few colleges mentioned below: https://www.shiksha.com/search/?q=BFA&bc[]=36&sa=1^0^0^36^0^0^0^0^0^0^0^0^0^0^bc:36&ts=492125&rf=searchwidget&