The issue of teachers' perception and its impact upon students is of vast significance in the highly stratified as also complicated Indian society which leaves vast room for the formation and operation of perceptions emanating from caste-class-community based determinants of unscientific description. The author has found the predominant majority of teachers have poor perception of, unfavourable attitudes towards and low expectations from the students coming from poor and disadvantaged groups/ families, and its impact on them is devastating.