Pondicherry citizen residency

There's no such difficulty to get residential certificate for Pondicherry.

But without migrating to Pondicherry you cannot think about it.

Just because you have married a woman from Pondicherry you cannot get a nativity or residential certificate of Pondicherry 

Women who are married to a permanent resident of Pudducherry are eligible to obtain a residency certificate.

Both Puducherry and Tamilnadu are in India. If one goes to Puducherry and stays there for sufficient time, one can get voting rights and domicile of Puducherry.

You can get your name added to the family card of your husband;

You can change the aadhar card address to Pondicherry;

You can get the election identity card also transferred to Pondicherry address;

All these identity proof documents will be sufficient for you to claim residential certificate in Pondichery 

Every State/Union Territory has its own norms for granting domicile certificate.