Hello dear candidate,

Hope you are doing well,

For admission through all India quota 15%  you will not need domicile certificate but if you want to take admission through state quota 85% you will need domicile certificate. You can use valid domicile certificate only.

https://medicine.careers360.com/articles/neet-domicile-criteria

Here's a link which will help you with all the criteria for domicile certificate.

Hope this would help you,

Thank you.