On-line shopping is becoming common among the people. Especially, in places where time and distance are great constraint people are found preferring the mode of shopping online. There are number of E-commerce sites, where users can shop different items ranging from clothes, shoes, grocery, electric gadgets, books, automobile etc. Present study focuses on selective E-commerce site to find relation among: perceived ease of use of sites and it been perceived useful by its users; perceived ease of use of sites and different usage of site; and sites perceived useful by its users and difference in their usage. Responses of 92 users of different selective E-commerce sites were collected for the purpose of study. Correlation was used to study the association among the variables. Result of the study revel association among the parameters of perceived ease of use, perceived usefulness and usage of e-commerce site. Positive association was examine among the variable perceived ease to use, perceived usefulness and usage of e-commerce site.