Here is a data flow diagram for Institute Maintenance Portal. It provides a visual representation of how data is collected, processed, and stored by the portal, and how it flows between different functional modules within the system. The diagram gives a clear and concise overview of the data flow within the system, making it easier to understand and debug the system's data processing logic. It is a useful tool for both designers and developers, enabling them to visualize and communicate the data flow of the Institute Maintenance Portal.