The core aim of the research was to investigate Impact of Public Relations in Development of Manufacturing Company in Nigeria (A case study of Cadbury Nigeria Limited). It is noted that well established Public Relations practice go a long way in creating unimaginable reputation for an organisation. Survey research method was used coupled with accidental sampling technique. Frequency and percentage method of data analysis was used with tables. Findings show that PR of Cadbury provides adequate feedback and platform to manage the ply and complaints this which has enhanced customer satisfaction and mutual understanding and it also use social media/ ICT in facilitating effective communication between and among the internal and external publics of chi-limited. It was recommended that Public Relations Unit should be more creative and innovative in design new approach to solve every challenge and device new tactics that can facilitate performance.