When I am using auth feature. Fluentd is not able to connect to ES.

[harshvardhan1998]

When I am using auth feature. Fluentd is not able to connect to ES. But My Es is accessible from Host. I am able to connect using curl and esdump command.
auth:
enabled: true
user: "xyz"
password: "xyz"
includeTagKey: true
setOutputHostEnvVar: true
hosts: ["es.ap-south-1.es.amazonaws.com"]

logs of fluentd
2021-03-24 06:37:32 +0000 [warn]: [elasticsearch] Could not communicate to Elasticsearch, resetting connection and trying again. EOFError (EOFError)
2021-03-24 06:37:32 +0000 [warn]: [elasticsearch] Remaining retry: 11. Retry to communicate after 16 second(s).
2021-03-24 06:38:07 +0000 [warn]: [elasticsearch] Could not communicate to Elasticsearch, resetting connection and trying again. EOFError (EOFError)
2021-03-24 06:38:07 +0000 [warn]: [elasticsearch] Remaining retry: 10. Retry to communicate after 32 second(s).

Am I missing any more Configuration.