Mukesh Ambani on Network Effects

Ambani had set a one-year target of 100 million customers at launch; Jio crossed that mark in just 170 days. The pace reflected both demand for free unlimited 4G and the absence of any meaningful price floor from incumbents, who were unprepared to defend subscriber share against a well-funded attacker willing to bleed cash for years.

The cheap data Jio unleashed reshaped Indian consumer behavior beyond telecom. Rural India drove roughly two-thirds of projected $5 billion streaming/content revenue by 2023, vernacular apps like ByteDance's Helo took off in Tamil, Telugu, Malayalam and Gujarati, and an Uber driver in Delhi could livestream the Cricket World Cup on the job — proof of a changed media environment Jio had catalyzed.

India's telecom tower base expanded from 90,000 in 2006 to nearly half a million by 2020, an infrastructural overbuild forced by the surge in subscribers. The capacity proved unexpectedly useful: when Covid lockdown hit in March 2020, India's networks held up better than some European systems, operating at 60-65% of capacity versus typical 85% peaks elsewhere.