History

Per-chapter learning pages — being built

Each chapter will get its own page with: concept summary (Overview · Key Concepts · Formulas · Worked Examples · Common Mistakes · Quick Reference), 10-20 practice questions, a mastery quiz with adaptive difficulty, and Ask Shishya scoped to that chapter. Until each chapter is fully built, we keep this honest instead of showing placeholder buttons that don't work.

For the chapter list and reference content right now, use the official NCERT link above. The NCERT textbook PDFs are free and authoritative — they're the source we'll ground our generated content against.