Abuse is a stressor that has a negative interference in the growth and development and health of children. Assessing the knowledge factor and prevalence of child sexual abuse (CSA) is a challenge faced in the society like ours. About one in seven girls and one in 25 boys are sexually abused before they turn 18.six to 11-year-old children are most likely (23%) to be abused in multiple-victim circumstances who are in the school age period of their growth and development. CSA is measured as a gigantic public health problem it demands a massive societal response. Hence the investigators were interested to assess the planned education programme (PEP) regarding CSA on knowledge of 60 school children from Mumbai in 2016. 20 modified children’s knowledge abuse questionnaire (CKAQ) was administered to assess the knowledge. And 2 questions on if had an experience as a victim and who was the victimizer was also administered to find the prevalence of any. The findings of the study indicates that there was a significant gain in the post test knowledge score 15.75 ± 3.03 when compared to the pre test knowledge score 11.74± 4.69 (p< 0.05).Children also found to have pre existing knowledge on CSA through their mothers but planned education program has significantly amplified the confidence, awareness as well as the knowledge of children. Children will play a unique role in bringing changes in our country.