The largest power outage in history occurred across 22 Indian states, affecting more than 620 million people, or about 9 percent of the world's population.

2012 India blackouts

Widespread power outages in India

Two severe power outages affected most of northern and eastern India on 30 and 31 July 2012. The 30 July 2012 blackout affected over 400 million people and lasted about 13.5 hrs. During that period, it was the largest power outage in history by number of people affected, beating…

States and union territories of India

India is a federal union comprising 28 states and 8 union territories, for a total of 36 subnational entities. The states and union territories are further subdivided into 800 districts and smaller administrative divisions by the respective subnational government.