The whole textbook, in short videos.

Why we exist

Every year, millions of students sit down with the same NCERT textbooks — some with a tutor on call and a shelf of guidebooks, many with nothing but the book itself. The book is excellent. What’s missing, for most students, is someone to walk through it with them: someone who reads the figure the way it was meant to be read, stops at the activity and says actually do this, and asks a few questions at the end to make sure the idea landed.

PrepShorts is that someone, built as software. Not a replacement for the book — a companion to it. Not a replacement for the teacher — a second pair of eyes that tells the teacher exactly where each student stands.

What makes us different

Most study apps treat the textbook as raw material for their own curriculum. We do the opposite: the book is the curriculum, and everything we make is subordinate to it. Each video is cut into the same sections the chapter prints. It cites figures by their printed numbers. When the book says do — an activity, a measurement, a table to fill — the video’s own index marks it, so you can pause there and do it before going on. What you watch and what the examination will ask are the same thing, because both come from the same pages.

The second difference is the school. PrepShorts is not a private channel between a student and an app. A school registers once, receives a code, and every student and teacher who joins with it becomes part of one picture — who has covered what, where the checks are failing, which page confused half the class. Teachers answer doubts pinned to the exact minute of a video. The office sees the term the way it’s actually going, not the way it’s remembered at report time.

How the videos are made

Each topic begins as a written brief: the thesis of the section, the objectives it must land, the misconceptions it must defuse, the figures and activities it contains, and the exact page references it covers. Subject teachers review the brief against the printed book. Only then is the video scripted, recorded and cut — with its section markers placed at the book’s own landmarks, so a doubt at 3:25 always points at a specific paragraph of a specific page.

Every topic also opens the printed chapter beside the video. That’s deliberate: the examination is set from the book, and a companion that quietly replaces it teaches the wrong habit.

What we cover

Mathematics, Classes 6 to 12 — Ganita Prakash for Classes 6, 7 and 8, Class 9 Mathematics, and the Class 10, 11 and 12 books — 708 topics across 88 chapters, each topic with its video, its pages and its check. Videos are live for Classes 6 to 12 today. Mathematics is the whole of it: we would rather finish one subject properly than start four, so other subjects are not planned.

Our promises

• The book first. Nothing taught that the chapter doesn’t teach; nothing the chapter teaches skipped.
• No advertisements, ever. A student’s attention is for study, not for sale — see the privacy policy.
• The teacher stays in charge. PrepShorts reports; teachers decide.
• It works on the family phone. Fluid pages, light videos, shareable links — no special hardware assumed.

Who makes it

Aditya Kedia is the founder of PrepShorts. He built it for his own child: he wanted to strengthen his child’s education with explanations that show why the maths in the NCERT textbook works, not just what the answers are.

He has spent his career building technology companies. He is a director of Hyrefox and co-founder of Shopivana, both in Jaipur, and was previously CTO of Incognito Technologies in Delhi and of Xatalog Technologies in Hong Kong. He holds an MSc in Artificial Intelligence from the University of Edinburgh. LinkedIn profile.