You can add a new person with the name "Kundu, Radhakrishna Kar | Dr. Prashant Jaiwardhan | Dr. Tridib Santapa", or you can "Kundu, Radhakrishna Kar | Dr. Prashant Jaiwardhan | Dr. Tridib Santapa" with a person entry that is so far only been referred to by another name (such as a former name or an alias name).