In current era of Internet use of Smartphone's are increasing to access the cloud based storage services with which user can access his/her data anywhere and anytime. Mobile devices are user friendly and that's why Smartphone's are targeted by digital culprits to conduct suspicious action such as data extrusion, identity theft, malware, illegal trading, and cyber stalking and cyber terrorism. In this we investigate popular cloud based storage client application on android platforms for forensic perspective, such as data generated when login to application, uploading and downloading files, deletion of file and sharing of files through application. Thus, method here is a need for forensic investigation that can obtain all evidences from a device, as well as analysis of various data from device.