Take Byju's, an India-based education startup named after its founder, Byju Raveendran. In early March, it announced it would give children free access to its learning app, which it says had more than 40 million users at the end of last year. Around 3 million of those paid between $150 and $200 for an annual subscription. Since the announcement, the company says it has experienced a 60% surge in students using its products, which range from interactive video lessons and live classes, to quizzes and exam preparation.
A nationwide lockdown, ordered by Prime Minister Narendra Modi in late March, means that India's school-age population of around 300 million is suddenly having to home educate.