Hello, 

As you have mentioned that your neet score is 451 marks. Firstly I congratulate you to get a good score. Secondly, you  may easily get a seat for BAMS or Bhms in any of the college either in government medical colleges or in private medical college. 

So, looking previous year's cutoff trend for BHMS you have fair  chances to fetch a seat for BHMS.

For furthermore information please go through the link given below to predict the colleges you may get :

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

I hope this would help you. For further queries please feel free to write me down in the comment box.