The song became a massive hit, topping the Mirchi Top 100 and reaching No. 1 on iTunes in three different countries. In 2011, it was named the most downloaded song and video in India.
Composers Vishal–Shekhar invited Akon to Mumbai in March 2010. While he was originally brought in for a portion of the song "Criminal," he ended up recording "Chammak Challo" as well.
Beyond the main film version, several official remixes and variations were released on the Ra.One soundtrack from T-Series :
The positive response was so significant that Akon expressed interest in creating a dedicated branch to produce more Bollywood music with local talent. Official Versions & Availability