Hi,

If your aim is to get a seat in Medical science than you should focus only on NEET exam.

Kvpy exam is conducted for selecting the candidates to fellow who are persuing undergraduate and post graduation courses in baisc sciences.

You can apply to kvpy exam only if you get enrolled yourself in basic science courses.

As you have not got admission in any B.Sc or B.S course you will not be eligibile to apply kvpy exam.

As you mentioned you want to focus on NEET exam. So prepare your best for the exam. If such a condition arises that you didn't get a medical seat than if you want you can get admission in basic science course and in that year apply for kvpy.

Note kvpy is a fellowship exam. Those candidate who wish to make career in basic sciences can give this exam to get the monthly fellowship. If you want to make your career in basic sciences go for it. If not focus on your main goal.

Hope this helps.