$Groups = Import-CSV -path "C:\users\Name$\Temp\Grouptest.csv"
ForEach ($Object in $Groups)
{
$OldName = $Object.OldName
$NewName = $Object.NewName
Get-ADGroup $OldName | Rename-ADObject -NewName $NewName
}
Using above command I can can change group name, but not getting clue to change other attributes like SamaccontName, Proxyaddress, Emailaddress