my domain on aws api gateway is not available in my region (ap-south-1) ==> India but available in other regions(which i check through vpn) ? how to resolve this?

I have created an api gateway and associated a custom domain with that api. My api is in ap-south-1 region. I have attached my route53 domain with my custom domain.

When trying to run my domain in my region (India), i am getting an error saying "This site can’t be reached", but running the same domain in other region through vpn is successful.

Please let me know how to resolve this error.