Simbu experienced difficulties with director AJ Murugan during the making of this film and was widely reported by the media to have 'ghost-directed' the project.
Murugan was later demoted and worked in Silambarasan's directorial venture, Vallavan (2006) as an associate director.Simbu played dual roles for the first time in his career in Manmadhan.Santhanam got his first break as a lead comedian in Manmadhan.Released along with Ajith's Attagasam, Manmadhan completed a 150 day-run in many centres and emerged as a blockbuster.The film, made at a budget of 5 crores, made 12 crores at the BO.The film carried an 'A' certificate with some cuts, and as the production cost had over-run, exhibitors and distributors were made to cough up some money for smooth release on Deepavali weekendCollection reports indicated that Manmadhan surged ahead of Attagasam in its second week with the help of good WOM.Simbu and rapper Blaze sang for the first time under Yuvan in the song, 'Thathai Thathai'. Simbu also sang another song, the remix of TR's 'En Aasai Mythiliye',Anushka Manchanda from the girl-pop group Viva! lent her voice for the song 'Mahire', which, incidentally, wasn't featured in the film.After the release, several bonus tracks, that featured in the film, but not in the soundtrack, were released again as a album, which also includes pieces of the film score.'Kadhal Valarthen', which was sung by KK, was penned by Na. Muthukumar'Kadhal Valarthen', which was sung by KK, was penned by Na. MuthukumarThe film was later dubbed and released in Telugu as Manmadha.Manmadhan was also remade in Kannada as Madana with Auditya and Sameksha in the lead roles.Here are a few more stills and posters from the film.