Deiva Thirumagal

The production of the film took five months from start to finish, however, Vijay claimed that the film had been in his plans for four years, but he waited for Vikram to give him dates.[3] With A. L. Vijay and Vikram confirming their presence in the project, the producers failed in attempts to persuade Vidya Balan to appear in the film.[4] In October 2010, Anushka Shetty agreed to appear in the lead female role in the film after agreeing terms.[4] Amala Paul, who appeared in the lead role in Mynaa, was signed in November 2010.[5] She had signed on in place of Meera Jasmine, who opted out of the film before production began.[6] Despite reports that Divya Spandana joined the cast of the film in early 2011, Vijay refuted the claim as a rumour.[7] The film saw the collaboration of several technicians who had worked in Vijay's earlier film Madrasapattinam, with G. V. Prakash Kumar as music composer, Nirav Shah as cinematographer and Anthony as editor. Santhanam was appointed as art director, whilst Deepali Noor took charge of costumes.[8] Sara had appeared in a commercial for Vijay when she was two but he then lost touch with Sara's family, before he met them and cast Sara in Deiva Thirumagal, following a visit to Mumbai.[9]

The film proceeded without an official title until April 2011, with several possibilities announced during the production period. The film was tentatively titled Deiva Magan (Son of God), a title from a 1969 film featuring Sivaji Ganesan. However problems arose after Sivaji Productions claimed that they owned the rights of the title and expressed their interest on using the name for a future production featuring Sivaji's grandson, Vikram Prabhu.[10] The title Pitha (Father) also ran into trouble after a debutant team announced that they had registered the title, and the title Deiva Thirumagan also created controversies,[11] but subsequently the film was christened as Deiva Thirumagal in March 2011.[12][13]

The film was predominantly shot across the hill country settings in Ooty throughout late 2010, with a chocolate factory being constructed as a set by art director Santhanam.[14] Scenes were also shot within Chennai, with the Chennai High Courtroom being reproduced for a scene in the film.[15] The team of the film returned to Ooty in February 2011 to complete the final schedule, after which the film was completed.[16] In order to perfect his portrayal of a mentally challenged adult with the maturity of a five-year-old boy, Vikram visited Vidya Sagar, a school for children with special needs, to learn and study the behavior of such children.[17]

After completing the film with little publicity, the film met the press at Raintree Hotel St Mary's Road in Chennai on 3 April 2011 to launch the title and logo, the teaser trailer and three twenty-second promotional videos of the film.[18] The event was attended by technicians and actors from the film, with the teaser trailer drawing acclaim and positive reviews from film critics.[19]

Professional ratings

Review scores
Source	Rating
Behindwoods	[28]
Rediff	[29]
Indiaglitz

The soundtrack album received positive reviews from music critics. Richard Mahesh from Behindwoods.com gave a rating of 3/5 and quoted "It’s realms of G.V. Prakash again as the young music director strikes with a brilliant composition. On the whole, every song in ‘Deiva Thirumagan’ has chances of getting ennobled as the best numbers. As of now, ‘Vizhigalil Oru Vaanavil’, ‘Vennilave’ and ‘Aarariro’ deserve special mention for the heavenly work by entire team." describing the music as a "Genuinely pleasing piece."[28] Pavithra Srinivasan from Rediff also gave a score of 3/5 and described the music as "touching" further saying "Deiva Thirumagan has numbers that fit in, almost formulaic fashion, with the angst and emotion that's required of a movie like this. The good thing is that G V Prakash, despite going with tried and trusted tunes, manages to make them melodious and touching. Go for it."[29] Another portal, Indiaglitz said "It would be cliched to say that the duo has recreated its Kireedam and Madraspattinam magic in Deiva Thirumagan, the Vikram starrer. For the album sets a new benchmark in terms of a complete fusion and certain new things have been attempted all through. To sum it up, songs from Deiva Thirumagan is a treat to music lovers and a feast to the fans of Vikram and GVP."[30]

The film received positive reviews.[33] CNN-IBN gave three and a half out of five, lauding Vijay for "having handled the emotional sequences with maturity", further adding that "his creative grip over the medium and the subject lifts the movie to higher levels despite some flaws and slow narrative."[34] Behindwoods.com called it an "emotional tale between a father and a daughter well told", giving it three and a half as well.[35] Sify noted that it was Vikram’s "best work in years", further writing: "You can feel the earnestness of his intentions and the wetness of his tears. He is able to nail the character’s boyish charm and innocence like sunshine and his restraint in the courtroom scene and his poignant dialogues in the climax, is heart breaking".[20] S. Viswanath from the Deccan Herald stated that "Deiva Thirumagan, with A L Vijay [...] proving his mettle and supported by his glorious team, ensures it’s worth the ticket money", labelling it as a "not-to-be missed, must-see movie."[36] D.I. Aravindan from nowrunning rated it three and a half stating that "despite some flaws and slow narrative in the first half, the movie turns out to be worth watching -- thanks to some extraordinary performances and emotional strength".[37] Chennai Online cited it was a "stand-out film" that "works a big way with its sensitive approach, good music, spectacular cinematography, and excellent performances".[38] Malathi Rangarajan from The Hindu called it "a sensitive poem on celluloid" that "showcases paternal instinct in all its poignancy" further citing that "Vijay provides enough fodder for this veritable storehouse of talent, and the actor gobbles it up with glee". She heaped praise on Vikram stating "an antithesis almost, but temerity or timidity, the actor accomplishes the task assigned, with élan."[22]

However, the film also received mixed response from other critics. Rohit Ramachandran of nowrunning rated it two and a half describing the film as a "well-made crowd pleasing family entertainer with a developmental disability that gets mentally taxing for the audience towards the end."[39] Pavithra Srinivasan from Rediff also rated it two and a half, praising Vikram's performance, while citing that "if you're a fan of sentimental tear-jerkers, and have not seen I am Sam, Deiva Thirumagal might impress. For the rest, it might provide a sense of déjà vu, and towards the end, the meandering, weak screenplay is largely dissatisfying."[21]

In Chennai, the film collected ₹80 lakh in the first three days with around 100% occupancy in theaters.[40] After one week, the collections were around ₹2.53 crore with the average occupancy being 90%.[41] After six weeks, it had collected ₹7.01 crore from Chennai and was declared a super hit but at the Kollywood box office whereas underperformed at the Tollywood box office and considered a Flop at the telugu box office. The film completed 100-day run at the box office.[42][43][44]