The government of India set the "U" copyright within the international copyright of OCI card holders. It bars immigration authorities from producing a overseas copyright made up of the "U" copyright in the entry/exit of India. If your OCI card holder attains the nationality of a different country https://reidpxhqc.blogminds.com/the-fact-about-nri-tax-filing-that-no-one-is-suggesting-32616117