- A copy of the Indian passport; or a copy of the Domicile Certificate issued by the Competent Authority; or a copy of the Nativity Certificate from the Competent Authority; or an OCI Card/ PIO card of parents/ spouse along with the base papers/ documents upon which the OCI/ PIO card was issued; or any other proof substantiating the request. Applicants are usually allowed to submit a certificate of domicile or place of birth of themselves/parents/grandparents from the appropriate First Class Magistrate/District Magistrate (DM). Documents vary depending on who is applying for an OCI Card.