Dear Aspirant

Yes, you can absolutely give the NEET exam 2021 as the minimum age for the same is 17 years of age. As per the NEET 2019 eligibility criteria, a candidate was required to complete 17 years of age either at the time of admission or else on or before December 31, 2019. 

However, you need to go through the prospectus in section of eligibilty criteria for NEET 2021 for in case of any changes.

Hope this helps you.