While the power has been restored to most of the 600 million in India who were affected by the outage, there are those who feel that power grid failure may occur again due to too much demand and not enough supply. So it is no surprise that the country is looking to increase alternate power sources.
Solar power is often used in remote regions, as shown in this video from SunEdison. They recently built a 15 kilowatt plant in central India's Meerwada village with enough power to serve 70 houses. Hopefully solar power will become more widespread in time, including in congested urban centers.