Hello aspirant
Hope you are doing well
No only half sleeves kurti are allowed in NEET exam
So you should avoid wearing 3 quarter sleeves kurti to avoid any chance of risk.
Here is the dress code for females issued by NTA NEET

Female candidates must awear a mask and gloves as per COVID 19 safety guidelines set by the authority.
Female candidates are advised not to wear clothes that have elaborate embroidery, flowers, brooches, or buttons as this is prohibited in the NEET dress code for female 2021 specified by NTA.
No clothes with full arm-length sleeves should be worn on the day of examination. Following the dress code of NEET 2021, female candidates should wear half sleeve clothes.
Jeans with big pockets and fashionable will generally not be allowed for females as per the NTA NEET dress code. So, female aspirants, are advised to avoid wearing jeans on NEET 2021 exam day.
Leggings are not allowed in NEET 2021
Palazzo is not allowed in NEET 2021 as per the dress code for female
It is best to avoid high heels and thick sole shoes and instead opt for sandals or slippers. Low heel footwear is also allowed.
Female candidates must avoid wearing any kind of jewelry like earrings, nose rings, rings, pendants, necklaces, bracelet or anklets. Metal detectors may cause an unnecessary hassle if the metal is found on the person.
For futhers details you can visit the given link below
https://medicine.careers360.com/articles/neet-dress-code
Good luck
Hope it helps

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