In ethnic unrest-torn Manipur, the medical students are once again in protest mode, alleging that they were barred from appearing in their first-year examination which began today at Churachandpur Medical College (CMC). In the memorandum addressed to the governor of Manipur Anusuiya Uikey, the students alleged that 27 displaced tribal students had filled up their examination forms, admit cards and deposited their examination fees. However, they were debarred from taking their BDS examination and again the MBBS examination.