Abstract: The present disclosure discloses a system and method comprising a Natural Language Generation (NLG) module in a data visualization environment for generating a contextual narrative for visualization e.g. graphs in natural language. The narrative is generated using a composite system comprising business input, ontology structure comprising semantical relationship and a deep learning paraphrase model to express and enable semantics in a personalized manner. The essential element of the disclosure is the system and method for providing context to generated narrative, using ontology structure comprising semantic relationships and search criteria including, but not limited to, filters and types of aggregations.