Most unfortunate incident. It should be condemned. Teachers, those are greedy of money better switch over to their own coaching classes leaving theier teachership in a public/Govt. school. A Teacher should be honest and impartial while discharging his duty/imparting education to his/her students. A teacher should come forward to help his student in case of any doubt and should behave decently. He/she should leave such an image in the minds of students so that they will be remembered by their students for ever. After all teachers are the persons who builds the future of a bright nation.