Child sexual abuse has, unfortunately, become a negative component of human societies, in all developed, developing and under-developed countries. With the advent of information and communication technology, accessibility to, media-recording devices, the child sexual abuse and exploitation material has become more prevalent globally. The effects of child sexual abuse (CSA) are extensive, having long-term negative impacts to the victim child, his family, and the community, yet this has been labeled a universal health catastrophe which is avertible. Online solicitation and grooming are most destructive forms of online sexual abuse. The Internet Service Providers (ISPs) such as Google, Microsoft, Twitter and Facebook are required to be regulated through legislation to create server monitoring protocols for battling against child sexual abuse material (CSAM) and this mechanism will facilitate to diminish ever-increasing challenges in investigation and prosecution. For conducting the investigation and prosecution of online sexual abuse; Multi-disciplinary Team (MDT) technique is considered the most appropriate, by involving the experts of every relevant filed with access to foreign jurisdictions for collection of available evidence. This research has included the reasons, causes, forms, prevalent scenario, situation of Pakistan and the measures to eliminate online child sexual abuse.