Stampede
Devotees standing in a queue initially saw the collapse of a rain shelter. This triggered a false cry of "Landslide!" as it was raining on the day of the stampede. People reportedly tried to move outside the railings put up by the police for crowd control, but the police refused to allow any more movements. The railings later collapsed and people fell on each other, starting the stampede.
Read more about this topic: 2008 Naina Devi Temple Stampede