India printed QR codes on school textbooks, turning paper into a national app

The idea began with one teacher: Ranjitsinh Disale designed QR-coded textbooks for his Class 4 class in 2014, persuaded Maharashtra to roll the format out statewide in 2016, and in 2019 it went national through NCERT textbooks. By 2026, India had 7,687 'energized' textbooks from NCERT and state boards linked to about 3.67 lakh digital content pieces on the government's DIKSHA platform.

DIKSHA works as a federated, open-source (Sunbird) ecosystem: states and boards upload material for their own curricula and mother tongues, with the Central Institute of Educational Technology reviewing quality. The Ministry reported 2.25 crore registered users and 575.25 crore learning sessions by June 2026, across 135 languages, with accessibility formats (DAISY, text-to-speech, Indian Sign Language) and offline preloading onto smart classroom boards.

The economics are the point. As IIT Bombay's Syaamantak Das put it, 'the incremental cost of adding QR codes is minimal. It meets learners where they already are' — leveraging textbook distribution, spreading smartphone access, and an open architecture states can localize. Karnataka alone logged 1.04 crore enrolments and 9.52 lakh registered users.

Put the QR code on the page the child already has

The textbook was already in the child's hands — the QR code rides the country's biggest distribution network for free.

Marginal cost per page is pennies, so every publisher and state board could adopt without new hardware.

The federated open-source design lets states pour in local-language content a central team could never produce.

Offline caching and accessibility formats reach the low-connectivity and special-needs users app-first products miss.

Attach new capability to the object users already hold: a QR code printed on a textbook costs pennies and rides the country's largest distribution network for free.

Engagement has been uneven: usage peaked around 2020-22 during the pandemic, declined sharply in 2023 and plateaued. Tamil Nadu, which introduced energized textbooks in 2018 with over 2 crore initial scans, now counts just 1,264 daily active users, and educators fault much of the content as basic and repetitive — the QR layer works best supporting classroom teaching, not replacing it. DIKSHA itself kept expanding into teacher training (18.77 crore NISHTHA enrolments and 12.79 crore certificates) and 614-plus virtual labs, with researchers proposing a layered 'Bharat AI Edu Stack' next.