Any metal objects like Gold, silver and any ornaments are strictly not allowed in NEET. So she might have to take them off before entering the examination hall. The scanners detect any metal and she will be asked to remove them. She will not be allowed to the exam hall with all those ornaments. There will be no lockers either. So it is better off if she doesnt wear them on the day of the exam because once she enters the checking area, she can neither come back and give them to you nor can she hold on to them because she will not be allowed to wear those. NTA has a strict dress code polic and it is good that it is adhered to in order to avoid any last minute hassles.