Dear aspirant,

As you have mentioned you have made a domicile certificate for neet UG 2021 and it has been verified on the e-district UP website but as per the guidelines you need to follow that.

Domicile certificate will always be accepted if it a recent one. And yours as you have mentioned that you have made your domicile certificate in 2016 so I would recommend you to make a recent domicile certificate to be on a safer side.