Hello aspirant,
Hope you are doing absolutely great.
So with regard to your query, in order to get a seat in not only St. Johns Medical College, but for any medical college, you need to give the NEET exam. It is mandated by the Medical Council of India. You cannot have any kind of other entrance exams for the purpose of MBBS seat without the NEET exam.
Checkout the following link for any information regarding NEET 2022: https://medicine.careers360.com/articles/neet-2022
Hope this helps you!!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile