Hello aspirant, NEET is conducted by NTA(National testing agency)

The criteria is that Candidate must be 17 years of age by December 31, 2020.

There is no upper age bar in NEET 2020. However, this is subject to the orders of the Supreme Court.

As you will be 17 years, there is no issue and you are eligible for NEET 2020.

Hope this helps.