Please keep OCI cards updated before travel or you could be denied boarding. Check minors OCI and if you have crossed 50 yrs get a reissued OCI before travel...………
https://timesofindia.indiatimes.com/city/chennai/why-pios-arefinding-it-hard-to-visit-india/articleshow/72960916.cms
https://timesofindia.indiatimes.com/city/chennai/why-pios-arefinding-it-hard-to-visit-india/articleshow/72960916.cms