Need column data in string with comma saperated

Hey @Mathkar_kunal

Use Assign Activity:

String.Join(",", dt_Input.AsEnumerable().Where(Function(y) y("SNCF").ToString.Trim.ToLower.Equals("yes")).Select(Function(row) row("Users").ToString.Trim()).ToArray())

Happy Automation!

Best regards,
Ajay Mishra