Educational institutions nowadays follow different administrative approaches to fulfil different departmental administrative tasks. A department of an educational institution has a lot of things to do and manage for the students and teachers. The department has to post notices on the bulletin board, keep information about students, record attendance in class, manage students’ attendance rate and results, and so on. Most educational institutions in many countries rely on paper-based administration, which requires a lot of staff and man-hours. Therefore, we have proposed an Android application for department management that has two panels, namely an admin panel and a user panel. Our proposed Android application can be used to upload messages, enrol courses and students, record attendance, set attendance percentages, and calculate results. To access the proposed Android application, a user must create an account, while a specific email and password are provided for the admin panel, i.e., teachers. The users can only see the provided information, while the administrators can modify all kinds of data in the proposed application. The administrators have the ability and permission to upload messages, record attendance, formulate attendance percentage, calculate results and perform other department specific activities. We have developed our proposed application using various technologies like Java, Firebase and Recycler Window. This Android application reduces the effort for the user and saves time for students and teachers. We strongly believe that our proposed Android application will usher in a new era in managing departmental activities in educational institutions.