(Reuters) - Hundreds of millions of people across India were left without power on Tuesday in one of the world's worst blackouts, trapping miners, stranding train travelers and plunging hospitals into darkness when grids collapsed for the second time in two days.
Stretching from Assam, near China, to the Himalayas and the northwestern deserts of Rajasthan, the outage covered states where half of India's 1.2 billion people live and embarrassed the government, which has failed to build up enough power capacity to meet soaring demand.

"Even before we could figure out the reason for yesterday's failure, we had more grid failures today," said R. N. Nayak, chairman of the state-run Power Grid Corporation.
http://www.reuters.com/article/2012/08/01/us-india-blackout-idUSBRE86U0C520120801