Cloud Computing is one of the important name in the field of Computer and Information Science. Cloud Computing is actually need of the hour. Cloud Computing is an important platform which is deals with virtualization. This is a platform or more clearly an architecture which supports virtualization. And virtualization is including hardware, software, packages, utilities and applications that means whole IT infrastructure. Cloud Computing and its evolvement introduced so many facilities and services out of which demand based services treated as most important in many perspective. This paper is deals with several aspects of cloud computing; including so many demand based services for creation of healthy and sophisticated information infrastructure powered by advance technologies. Several facets reported in this paper as per the R&D undertaken in ISOAH Data Securities Pvt. Ltd and also will be incorporated in the doctoral thesis of the main researcher.