Because the indian government created these rules which are now on TIMATICWEB.
As I said this is the database that checkin agents use.
You can check it for yourself as some airlines allow you to access this
For example
See
https://www.koreanair.com/global/en/tra ... imaticweb/
And upload your details
In OCI it says that OCI has to be renewed with each new passport till the age of 20.
The actual wording is
Important:
Passengers who are 20 years and younger must apply for a new OCI card every time they get a new passport.
Passengers who are 21 and younger than 50 years are not required to apply for a new OCI card when they get a new passport. They can present the OCI card with a valid passport.
Passengers older than 50 years must apply for a new OCI on the first renewal of the passport after 50 years. If the OCI card is issued for the first time after the passenger is older than 50 years, there is no need to issue a new OCI every time a new passport is issued.
These are actual OCI rules which India itself does not follow
I still have not heard of anyone not allowed in as OCi had not been renewed..
It's the airline which is finding it difficult to board passengers( they can get heavy fines if they allow passengers to fly without following the rules ) and unless Indian government changes the rules an evisa is the safest option .
