Hey dear, as far as i am concerned you must be ambitious to get an mbbs seat so that you are putting bams as your secondary choice. See, NEET exam is easy for some people and similarly difficult for other ones. Many people have managed to study again for the next attempt with their other medical course going on, and they have succeded too in thier goal. I would say yes, you can manage both if you stick to a certain routine daily. If you take it in a easy way things wouldn't be favourable.