You can add a new person with the name "Rethika, T. Aboorva Kaviya | T. Aishwarya | S. Deepika | R. Pavithra | R.", or you can "Rethika, T. Aboorva Kaviya | T. Aishwarya | S. Deepika | R. Pavithra | R." with a person entry that is so far only been referred to by another name (such as a former name or an alias name).