EC2 configuration is currently not supported - Delhi Local Zone

As per the comment above, please double-check that you are trying to launch an instance type which is supported in the Local Zone.

Note that you can check what instances types are available by running the following command:

aws ec2 describe-instance-type-offerings --location-type availability-zone --filters Name=location,Values=ap-south-1-del-1a --region ap-south-1

I'm posting my full VPC / Subnet & EC2 config I'm trying to spin for Local Zone Delhi - ap-south-1-del-1aap-south-1-del-1a. Can you spot any problems? if not, I'd presume a out of capacity issues but would have appreciated if the error was more descriptive rather than being so generic.