The track 'Om Shanthi' was played during Surya's visit to United States in search of Meghana. It was shot at various locations including India Gate, Mumbai Taj Hotel, Taj Mahal, Egmore Junction and Anna Nagar Tower Park and few sequences being filmed in set. The song ' Nenjukkul Peidhidum' is picturised with Surya's ( Suriya) first meet with Meghna ( Sameera Reddy) in a train, where Suriya recognizes his love at first sight. Following the anticipation, a rough cut of the song was leaked into the internet, creating uproar among the film crew. This song featured in the first trailer was raved by audiences, which also led a popular distributor in North India to fetch the film rights for the highest bid. 'Adiye Kolluthey', which was recorded by Benny Dayal and Shruti Haasan, was shot at the University of California in Berkeley, were few scenes were being filmed. It was shot at the Elliot's Beach, along with the LIC headquarters in Chennai and Napier Bridge.

The song 'Yethi Yethi' sung by Benny Dayal, was picturised on Suriya's early life in his teenage.

A sample of tunes and beats is inspired from the 1987 song 'Faith' from the studio album of the same name by George Michael. The track was considered to be a favourite for many music critics and audiophiles. The track 'Mundhinam Partheney' was played during Krishnan's ( Suriya) meet with his first love Malini ( Simran). The soundtrack album was under production from late 2007, features seven songs six of them written by Thamarai and one song by Na. It was the last soundtrack from the collaboration with Jayaraj and Menon, after they parted ways post the film's release, until they worked together in Yennai Arindhaal (2015). It is considered to be the most played and repeated soundtracks in music streaming platforms till date, a record for a Tamil album. Upon release, Vaaranam Aayiram became the most downloaded Tamil album and was listed among the top 20 digital downloads. The soundtrack album opened to critical acclaim and fetched multiple accolades. The soundtrack for the Telugu dubbed version titled Surya S/o Krishnan featured lyrics by Veturi and was released on 30 October 2008. The album was distributed by Sony BMG and released on 24 September 2008. The album was under production from one-and-a-half years and featured seven songs written by Thamarai and Na. Vaaranam Aayiram is the soundtrack album for the 2008 film of the same name directed by Gautham Menon, and features music by Harris Jayaraj, following four successive soundtracks with the director.

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