See there can be some exceptions but in general this kind of things don't occur a lot. Many students who are scoring 350-450 are there as its the marks range where the density of the students are the highest. So I would say don't concentrate on such things, it can be true but it would be exception. So try to score as much as you can in order to have the best shot for MBBS.

To know more about NEET preparation tips visit the link below:

https://medicine.careers360.com/articles/neet-preparation-tips

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