How do I apply a new customs policy to an existing group without destroying the existing policies?

Terraform
1

When I applied custom policies to AWS IAM groups, my existing AWS custom policies were destroyed by Terraform.
Have you any idea, How do I apply a new customs policy to an existing group without destroying the existing policies?

2

Hey @yogesh.hingrajiya, can you share how you have defined the policy attachment to group and the TF plan output ?