Depressed over failure in class 12 examination, a girl committed suicide in Bokaro on Monday. According to the police, Ruchi Priya (15), a +2 student of Sardar Patel School Sector-9, killed herself. She was residing with her grand parents at Prabhat Colony Chas. "She saw her result on her mobile phone. She hanged herself from ceiling fan", said Nagendra Prasad Singh OC police. We are investigating into the matter, body has been sent for postmortem, said OC.