Starting next Monday, June 29, 2020, india.commcarehq.org will begin resolving to new IP addresses. If you use IP whitelisting, please be advised that the new IPs to whitelist are 13.248.213.230 and 76.223.90.98.
I repeat this affects only india.commcarehq.org and does not affect www.commcarehq.org.
For updates, see also Cloud Endpoint IP Addresses - CommCare Public - CommCare Public.