Travel India Professionals is currently facing a problem that has an impact on the declining consumer's interest to purchase through E-Commerce in Viator. Efforts were made to improve purchasing decisions in Travel India Professionals by increasing E-Commerce which includes Transaction/cost, Interactive Programs, Site Design and Interactivity. The method used in this research is descriptive and verification using explanatory survey method. The purpose of this study is to find out the impact of E-Commerce towards purchase decision in Travel India Professional. Respondents of this research were 120 consumers who have purchased the Travel India Professionals's tour package through Viator. This research used multiple regression as data analysis technique. The result shows that E-Commerce has an impact on purchase decision in Travel India Professionals.