Will I be allowed to appear of neet if I have faded mehndi on pn palm

Yes, candidates are generally allowed to appear for NEET even if they have faded mehndi on their palms. However, the biometric verification process, including fingerprint scanning, should be clearly possible on the exam day. If the mehndi is very dark or covers the fingerprint area completely, it may create issues during verification. Since you mentioned the mehndi is faded, it is usually not a problem, but it is advisable to keep your hands clean and ensure that your fingerprints are visible to avoid any inconvenience at the examination centre.