Bullying in Indian schools and institutions

I was a normal guy in my teens. The stronger and taller ones used to bully the weaker and shorter guys. I was a medium guy though people called me weak. There were a few a strong guys in my classroom they bullied the weaker ones. Once I sat in front of them. They did not let me concentrate on the class and continuously hit me and wrote slang on my shirt. They laughed at me. I just wanted to hit then but they were stronger. Same things in schools. The guys they kicked me,wrote slang on shirt and hit the weaker ones and made fun of the physical features. In fact some of the teachers took the fun out of it. Whenever u try to complain about them they will complain back all lies and the teacher will punish both of u. All indian students should raise their voice against these.