Do I need to have my OCI card renewed after turning 20, even if a new?
The OCI card does not need to be renewed it is reissued. This needs to happen when the holder crosses 20 and 50 years of age, probably to account for changes in facial features over the years. There is no need to reissue the OCI card when passports are renewed. See this for further clarification: Daksha Bhat's answer to Our US passport expired and we have been issued a new one. Do I have to apply for a new OCI card? In the current pandemic situation, the government has relaxed certain norms on the OCI reissue front. Keep checking the government site for updates. And when you travel carry your old passports with you too. Previously this requirement had been removed, but better to be safe than in trouble at immigration.