The film opens with two friends "Pattai"Murugan (Sivakarthikeyan) and "Theni"Kesavan (Vimal) who are unemployed and want to become a politician. Meanwhile, Murugan meets Paappaa (Regina Cassandra) and falls for her. On the other side Kesavan meets Mithra Meenalochini (Bindu Madhavi) and falls for her. Paappaa and Mithra, too, fall for them after many confusions. There comes the Councilor Election and Murugan stands for it. Paappaa gives Murugan money to spend for the election. Eventually Murugan loses in the election. Seeing this, Murugan's father dies by falling off of the train platform. Murugan gets the job of his father. Kesavan marries Mithra. Murugan and Paappaa waits for the acceptation of their parents. As their parents accept for their marriage and they get married . Murugan & Kesavan realise the real value of the life & they decide that life is nothing without doing work so they both go to their respective homes & while seeing their father's photo Murugan & Kesavan write that " DAD IS MY GOD " & " MY FATHER IS HERO " respectively.Sivakarthikeyan as Pattai Murugan / Ranga Murugan
Vimal as Theni Kesavan / Billa Kesavan
Regina Cassandra as Paappaa
Bindu Madhavi as Mithra Meenalochini
Soori as Sindru
Delhi Ganesh as Chidambaram
Manoj Kumar as Aachivardham
Sujatha Sivakumar as Murugan's mother
Nandhini as Sindru's wife
After Marina Pandiraj announced his next project Kedi Billa Killadi Ranga with Vimal and Sivakarthikeyan two of his proteges in lead roles. The director noted that he was initially interested in also casting Arulnithi, another protege, in a third leading role, but was unable due to the script. Bindhu Madhavi was selected as first heroine while Regina Cassandra who earlier appeared in Kanda Naal Mudhal and Azhagiya Asura was selected as second heroine.
The film is all set shooting in Trichirapalli around the areas of Ponmalai(Golden Rock), Subramaniyapuram, Jamal Mohamed College, Lakshmi Nivas Hotel, Places near Rathna Stores Firm, Kattur, Jai Nagar, Malaikovil, Frontline Hospital and Thiruverumbur. The makers of the film initially wanted Silambarasan and Dhanush to sing the song "Oru Porumbokku", but Dhanush's involvement in foreign shooting for Maryan, meant that Yuvan Shankar Raja ended up singing the song.
Teaser of the film was released on 11 Jan 2013 along with Studio Green's Karthi Pongal mass masala Alex Pandian. Venkat Prabhu, Premgi Amaren and VTV Ganesh were roped in for a promotional video, in addition to the film's cast. It was launched on the net and television before the film’s theatrical release.
Yuvan Shankar Raja composed the soundtrack for Kedi Billa Killadi Ranga, working the first time with director Pandiraj. The audio of the film was to be launched on 6 February 2013 at the Satyam Cinemas in Chennai, but had been cancelled, owing to the case filed by R Jayaraman of RS Infotainment against P Madan the co-producer of Kedi Billa Killadi Ranga. The director revealed that he had initially planned for four songs, but decided to add one more track at the last minute. Silambarasan has sung the opening song of the film with Yuvan.The soundtrack received positive reviews from the critics.
K. E. Gnanavel Raja's Studio Green secured the distribution rights for Kedi Billa Killadi Ranga in November 2012. The satellite rights of the film were purchased by Zee Thamizh. The film was given a "U" certificate by the Indian Censor Board. The film was released on 29 March 2013 for the Easter weekend along with three other film, Chennaiyil Oru Naal, Azhagan Azhagi and Keeripulla. It was Released in 332 Screens.
KBKR opened to positive reviews. in.com rated it 3 out of 5 and stated that Pandiraj got his casting right and rides on them without worrying much about the plot. The film works in bits and pieces. Go for it only if you have nothing better to do!. Behindwoods gave the movie 3 out of 5 and stated that it was an enjoyable funny ride for summer. Shailesh K Nadar of CinemaSpice.in rated the movie as 3.5/5 and mentioned in his review that "Though KBKR isn’t content rich like the director’s debut Pasanga, it is undeniably a family entertainer this summer!". Rediff wrote:"Director Pandiraj injects a good dose of humour and makes the film enjoyable to watch". Times of India said, "By now, the tale of a wastrel turning responsible has been done to death in Tamil cinema but what sets this film apart is in the refreshingly effortless manner in which the director spins his tale."