Unable to take the snapshot of the indices in the openserach version 1.3.0

Versions (relevant - OpenSearch/Dashboard/Server OS/Browser):

opensearch version 1.3.0 deployed in kubernetes

Describe the issue:
“type” : “exception”,
“reason” : “failed to create blob container”,
“caused_by” : {
“type” : “access_denied_exception”,
“reason” : “/es_snapshots/indices”
}
},
{
“type” : “access_denied_exception”,
“reason” : “/es_snapshots/snap-zk2d3NZyRSGPA9gisjmbgg.dat”
},
{
“type” : “exception”,
“reason” : “failed to create blob container”,
“caused_by” : {
“type” : “access_denied_exception”,
“reason” : “/es_snapshots/indices”
}
},
{
“type” : “exception”,
“reason” : “failed to create blob container”,
“caused_by” : {
“type” : “access_denied_exception”,
“reason” : “/es_snapshots/indices”
}
}
]
}
},
“status” : 500
}
this is the error i get when ever i try to take the snapshot
need help on this

Configuration: I am mounting the nfs mountpoint and created the repo es_snapshots and registered the repo and trying to take the snapshot
curl -XGET ‘http://endpoint_domain:9200/_snapshot/es_snapshots/first_snapshot?pretty’

Relevant Logs or Screenshots:

@bhagya could you please share the stack trace from the server side?