A review of 30,31 July 2012 Blackout in India

In July 2012, India faced one of the worst blackouts, where almost 48,000 MW of load got disconnected from the New Grid. More than 600 million people were affected by the blackout.
What led to the blackout which lasted two days? Did it happen because of bad grid infrastructure? or failure in following the set processes?
Central Electricity Regulatory Commission(CERC) investigated the causes, recommendation and future course of action. We found the report from CERC very interesting and thought that it would be useful to you as well. We have put the information in a more easily digestible form – in a power point slide deck. The ppt is shared below. Do let us know your comments.