You have tagged NATIONAL DEFENCE ACADEMY in your question, but NDA don't offer admission on the basis of MAHCET but for admission UPSC conducts separate examination twice a year known as NDA-I and NDA-2. I think you are asking about any other college. I would recommend you to repost the question with proper name of the college so that we can provide you the info needed.

To know more about the admission in NDA visit the link below:

https://competition.careers360.com/articles/how-join-nda-after-passing-12th

To know more about the MHT CET visit the link below:

https://engineering.careers360.com/articles/mht-cet

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