Complex sentence: The film's soundtrack, composed by A. R. Rahman, was released on 31 July 2010 at a promotional event held at the Putrajaya International Convention Centre in Kuala Lumpur, Malaysia.
Split into simpler sentences: The film's soundtrack, composed by A. R. Rahman, was released on 31 July 2010. It coincided with a promotional event held at the Putrajaya International Convention Centre in Kuala Lumpur, Malaysia.