Core9X: board-exam learning for eight boards

The problem

Students in the North-East sit different board exams: MBOSE in Meghalaya, NBSE in Nagaland, TBSE in Tripura, MBSE in Mizoram, the Manipur and Assam boards, and the national CBSE and CISCE. Most learning apps are built for one national syllabus, so a Meghalaya student revises chapters their board has cut and misses the question pattern they will actually face.

What we built

• Chapters organised by board, class and subject, following each board’s current syllabus and cuts
• Deep lessons with worked examples, maths that renders cleanly on phones and labelled diagrams
• Practice questions, solved past board papers and mock tests in each board’s marking pattern
• 341 short lesson videos, streamed from Cloudflare R2
• Sign-up with emailed parental consent, and a free tier with one chapter per subject

How it runs

The site is a Next.js front end over a FastAPI and PostgreSQL back end. Content is written as structured files and imported, so a whole board can be added without touching the code. Pages are kept light so they open quickly on 4G and low-cost Android phones.

Where it stands

Core9X went live in October 2026 and opens board by board. Meghalaya Class X is open to new students now, and the other boards follow as their lessons pass review.