International Journal of Management, IT & Engineering Vol. 7 Issue 6, June 2017, ISSN: 2249-0558 Impact Factor: 7.119 Journal Homepage: http://www.ijmra.us, Email: editorijmie@gmail.com Double-Blind Peer Reviewed Refereed Open Access International Journal - Included in the International Serial Directories Indexed & Listed at: Ulrich's Periodicals Directory ©, U.S.A., Open J-Gage as well as in Cabell’s Directories of Publishing Opportunities, U.S.A 358 International Journal of Management, IT & Engineering http://www.ijmra.us, Email: editorijmie@gmail.com Empirical Study of Research Issues and Challenges in Cloud Computing for E-Health SystemsA Review Shikha Mittal Dr. Paramjeet Singh  Dr. Rahul Malhotra  Abstract Cloud Computing could be a hot research area among the researchers in today’s world. It is an internet-based pool of heterogeneous resources. Cloud is much more reliable to make availability of resources when required for online users. Resources are provided as a service on demand with pay-on-usage basis. Computing is done on clouds for less cost and maximum utilization of resources. The cloud computing during this paper has been explored the variety of mechanism for providing data security in order that it would be widely accepted by the variety of many users. The aim of the paper is to present cloud computing service models, service providers, deployment models along with research issues and challenges in cloud computing for e-health systems. KeywordsCloud Computing, Service Models, Deployment Models, E-Health Cloud 1. Introduction In the recent years, for storing the huge amount of data through World Wide Web (WWW) the only most famous application is Cloud computing. Because of the ability of Cloud computing, the users are increasing vastly in the recent time. Cloud computing also provides the better effective application with the adequate cost in a satisfied way for the users. It is a web-based service and a strategy for giving on-demand services, expandable and perfectly elastic software services using the internet. Cloud computing is a scalable and unambiguous like user could increase and decrease the resources at any time anywhere. It could be a Ph.D Scholar, Dept. of CSE, IKGPTU, Kapurthala  Associate Professor, Dept. of CSE, GZSCCET, Bathinda  Director, GTBKIET, Chhapianwali