The study evaluates various aspects of current practices of selection and acquisition of e-resources in selected libraries of R & D institutions in Kolkata city. Selection of information resources is the core collection development function and the objective is to satisfy user needs. The study highlights the responsible authority, method, criteria, availability and mode of subscription of e-resources in R & D libraries. The emergence of e-resources have changed role of selectors and now selectors must address the new issues of access, technological, licensing and pricing concerns as part of the selection and acquisition processes. For planning, selection and acquisition of e-resources, it is recommended to assign a ‘acquisition library staff’ post who have knowledge about the latest issues and challenges of e-resources.