Tech-Craft-Corps Club of Department of Computer Applications of Global Institute of Management and Emerging Technologies composed One-Day National Seminar on "Portable Application Development Using Open Source" on twentieth Feb 2018. Er. Vishal Khanna, Google guaranteed mentor from DIPS Institute of Management and Technology, Jalandhar was the master of the course. In his first intuitive session, he gave exhaustive data about Android, its Features, Android Versions, Android Devices, Android Architecture, Android Market, Play Store, Android IDE's, Hello World Application, Android GUI, Android Activity, XML and JAVA utilized in Android, Toast, Intent, and Action Listener. In his second Technical Session, he examined weighting and showed the advancement of an Android Application (Calculator). The discussion was extremely instructive and was valued by the crowd.