The man who worked as a doctor in South Auckland despite having no formal qualifications has pleaded guilty to forging a document to gain an unfair advantage, NZ Herald reports. 30-year-old Yuvaraj Krishnan was employed at Auckland’s Middlemore Hospital until questions were raised about his medical qualifications. Krishnan worked for six months in the respiratory clinic and saw about 70 to 80 patients in that time. University of Auckland also confirmed that Krishna had previously been trespassed from its campus after posing as a medical student for two years.