Definition: A flash mob (or flashmob)
is a group of people who assemble suddenly in a public place, perform an
unusual and seemingly pointless act for a brief time, and then quickly disperse,
often for the purposes of entertainment, satire, and artistic expression. Flash
mobs are organized via telecommunications, social media, or viral emails. Source: Wikipedia
This year ICC organized Twenty 20 Cricket World cup in Bangladesh. University students perform flash mob with song Char Chokka Hoi Hoi.
Ranking of the flash mob among the universities are available in most popular Bangladeshi Online Radio Station HelloDhaka.
The Ranking could be found in the following link.
http://www.hellodhaka.net/t20-bangladesh-flashmob/