Hello aspirant,

Hope you are doing absolutely great.

So with regard to your query, NIOS board is a valid board and is also a recognized one. You can definitely apply for BHMS , BAMS or MBBS etc.,. medical courses. However, you need to qualify  the NEET exam for this purpose. And  after qualifying the NEET exam you will get the seat accordingly.

Checkout the following link for any information regarding NEET exam: https://learn.careers360.com/medical/neet-preparation-material/

Hope this helps you!!