With 400 score its very hard for you to get a seat in Government Medical College for the course of MBBS. Although some times its depend on the category. If you are SC/ST then you have feeble possibilities to get one by luck but if you are a general candidate then the probability is negligible.

To know more about NEET visit the link below:

https://medicine.careers360.com/exams/neet

For NEET college predictor visit the link below:

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

I hope this answer helps. All the very best for your future endeavors!