Coimbatore, May 18 (ANI): A class-12 student allegedly committed suicide fearing failure in board examinations in Tamil Nadu-s Coimbatore city on Tuesday. Though 17-year old Shaktiganesh, a student of a private school in Karamadai, passed with 71 percent marks, he hanged himself at his house in Periyanaicken Palayam before the result was declared. An FIR has been registered in the case and a probe is on.