thatrasunil/marks-management ? reverse-engineered prompt

Build me a web based marks management system for a school or college.

Students should be able to look up their results using their roll number and Aadhar validation, then see a clean marksheet with subject wise internal marks, external marks, total marks, grades, SGPA, and CGPA. Teachers should have a simple dashboard where they can manage the subjects they teach and enter or edit marks for students one by one with quick feedback and automatic grade calculation. Admin should be able to manage students, teachers, and subjects, process results for a semester or batch, release results so they become visible to students, and export polished Excel reports.

Please also include email sending for released results, basic responsive pages, and a few helper scripts for sample data and bulk student import. Use the existing project files and look up current docs online if you need to.