Hi, 

With an AIR of 3L its not possible to get a mbbs or bds seat in a government college.

You can try for private colleges however scope won't be that wide if you look for just mbbs. As for bds you can get a seat in a private college.

You can also try for deemed universities for both mbbs/bds. You will have a better scope there. Although the course fee would be high.

I shall provide a link below to help you pick colleges:

https://medicine.careers360.com/neet-college-predictor