In order to allow access to the AWS console, you need to create the IAM profile for the user Ramesh. You can use the New-IAMLoginProfile cmdlet for this purpose:
PS C:\> New-IAMLoginProfile -UserName Ramesh -Password Test123 -PasswordResetRequired $false
If you want to enforce the password change at first log in, then you can use the PasswordResetRequired $true parameter with the cmdlet.
If you are fail to set the password and do not know the password rules, then make use of the Get-IAMAccountPasswordPolicy cmdlet. This will list the rules enforced at the AWS account level:
PS C:\> IAMAccountPasswordPolicy
Now, get the AWS account alias using this:
PS C:\> Get-IAMAccountAlias
And make use of the alias returned by the Get-IAMAccountAlias cmdlet to sign in to the AWS console using the following:
https://<account-alias>.signin.aws.amazon...