You cannot rule out terrorism in a case like this, folks, considering the cells in Muslim Dubai, and also the standing threat from Islamofascists to hit India and hit India hard. THere has been a lot of chatter on how they want to hit airliners around the world, and yes, attempts have been made recently. Shazhad, the Times Square bomber, himself was heading directly to Dubai after leaving the van packed with the bombing contents.
Overshooting the runway is not really indicative of terrorism. Crashes typically happen on takeoff or landing.