I'm a girl so can I wear jeans and shirt for neet exam

Hey.

Yes, You can wear a Shirt and Jeans. But make sure you avoid clothes with embroidery, flowers, brooches and buttons. It is advisable to wear half sleeves clothes. Don't wear full sleeves.
Other than that here are some other guidelines related to the dress code-

Make sure you wear slippers or sandals with low heels as shoes are not allowed in the examination hall.
Any kind of jewellery like earrings, ring, pendants, nose ring, necklace or any kind of metallic item is not allowed. Make sure you remove them before entering the hall.
Try to strictly follow the dress code to avoid any problems later. Go through this article too once.
Https://medicine.careers360.com/articles/neet-dress-code/amp

Best of luck