This Paper sets out to assess the impact of e-governance implementation in Adamawa State JAMB Head Office Yola Nigeria, with a scope from 2015 -2023, By conducting a comprehensive literature review, an in[1]depth analysis of related public policies and New Public Management (NPM) that gave birth to E-governance application in the JAMB Head Office, the Paper aims to identify the primary factors influencing e[1]governance implementation in the studied public institution and assess the overall impact of this implementation on the delivery of public services. The research findings are that many public institutions in Adamawa State have embraced e-governance; however, these implementations have been largely unsuccessful in improving public service delivery. The Paper made several recommendations to improve the full implementation of e-governance so as to meet-up with the global benchmark, including increased funding, improved staff training, and more effective monitoring and evaluation mechanisms, that e-governance implementation can be a viable tool for enhancing public service delivery in Nigeria and other African countries. This Paper contributes to the existing literature on the use of e-governance to improve public service delivery and provides a useful insight into the current state of e[1]governance implementation in Adamawa State.