Kalakalappu was released on 11 May 2012, by UTV Motion Pictures. It was released in 255 screens in Tamil Nadu, and was the only Tamil release of the week. Ahead of the film's release, distributors predicted that the film would "work big time at the summer box-office", given the success of numerous comedy films in Tamil cinema released that year.
Critical reception M. Suganth of
The Times of India claimed that "
Kalakalappu remains true to its title and is jolly good fun throughout".
Sify's critic described the film as "good fun while it lasts, with the second half better than the first". Anupama Subramanian of
Deccan Chronicle wrote, "It's fun and funny, unpretentious and yet quite nutty!". Pavithra Srinivasan of
Rediff.com gave it 2.5 out of 5 stars and stated that it did have "its funny moments but only a few of them work".
In.com wrote: "
Kalakalappu works only in bits and pieces!". Malathi Rangarajan of
The Hindu wrote, "Predictable narrative technique is a bane, and not all attempts at comedy transcend time. Instead [Sundar] should move on, fine-tune his comedic skills and take the viewer on a more advanced and pertinent humour trip".
Baradwaj Rangan wrote, "Sundar C fills his lively canvas with a corrupt cop and a villain after missing diamonds, and these discursions occasionally put a brake on the proceedings. Thankfully, the kitchen sink, aka the doting grandfather who flies through a car’s windshield, is always round the corner".
Box office Trade analysts considered
Kalakalappu a success within a week of its release, given the low budget. According to
Sify, the film was made on a budget of , and grossed around . == Legacy ==