Hello,

No you don't need to wear the school uniform for your NEET exam. You can wear normal, civil comfortable clothes and your mask and gloves which is compulsory.

You should wear only half sleeves as full sleeve clothes are prohibited. Jeans with big pockets are also not allowed so avoid wearing it all together. Wearing any jewelry should also be avoided, as the metal detectors can create an issue.

https://medicine.careers360.com/articles/neet-dress-code

Refer to the link above for more information

Hope this helps!