Hi

First of all how are you counting your age? You won't be 17 years old before 31st December 2024

If you are born on 29th August 2008 then you will be 17 years old on 29th August 2025.

Your age at the time of neet examination doesn't matter, one needs to be at least 17 years old as on 31st December of  the year of appearing for Neet examination.

Thus,
For neet 2024,you need to be at least 17 years  old as on 31st December 2024 but you fail to fulfill this criteria as you will be 17 years old on 29th August 2025 i. e after 31st December 2024  and thus not eligible for Neet 2024.

You will be eligible in 2025 i. e for neet 2025.

Also,
For being eligible for neey one must be either appearing for 12th board examination or you should have passed it with physics, chemistry ,biology/biotechnology and English and must have got at least
---) 50 % in aggregate of PCB i.e Physics, Chemistry and Biology /biotechnology in 12th examination if belongs to general category ,
---) or   at least  40%  in aggregate of PCB if belongs to  Obc/ Sc /st category.

For detailed information about neet examination go through our page for which link is provided below; -

https://medicine.careers360.com/articles/neet-eligibility-criteria

Thank you