Kendriya Vidyalaya Sangathan — the behaviour of teacher among the students

I have complain that some of teachers are behaving rudely ìn front of student no friendly nature among students this is lead a huge problem for the student, student didnot ask any doubt from the teacher you should start a programme that every student give rating to the teachers every month if any teacher has bad rating or have any complain then kvs should warn him/her.