NEW DELHI, Nov. 21 -- Four staff members - three teachers and one headmistress - of a prominent school in central Delhi were suspended with immediate effect on Thursday after police registered a case against them in connection with the alleged suicide of a Class 10 student who accused them of harassment and held them responsible for his death. The 16-year-old boy had jumped from an elevated Metro station in west Delhi on Tuesday afternoon, leaving behind a handwritten note in his school bag that alleged persistent mistreatment by the four staffers. A police team examining the incident recovered the note, in which the boy described his anguish and identified teachers and the headmistress whom he said had repeatedly humiliated and targeted hi...