Mounting NFS directory

Hi, I have a server on AWS. And I am using Elastic Filesystem(EFS) to store my data. I mounted my NFS to /mnt/efs directory.

I went on to mount this efs directory to one of the docker containers. The mount was successful, but a read-only mount. I am not able to delete files in the efs directory from the inside of the docker container. Why I am not able to mount it both read/write permission? Is that not possible?