A day in Chennai) is a 2013 Indian Tamil-language thriller film written by brothers Bobby and Sanjay and directed by Shaheed Kader.

A multi-narrative thriller that intertwines multiple stories around one particular incident, the film is inspired from an actual event in Chennai.

On the same day, at a crowded traffic junction, Karthik, who was set to interview Gautham, and Ajmal, traveling on a bike, is hit by a speeding car and is rushed to Global Hospital.

They reach the hospital in time to save Ria's life just as Karthik's father and mother prepare to cremate their son.

[5] However, due to his extended involvement in his directorial venture, Haasan opted out of the film by November 2011 and R. Sarathkumar was subsequently chosen to replace him.

[6] Soon the actor's wife, Radhika, joined the film and agreed to produce the venture alongside Listin Stephen.

[7] In March 2012, Rajesh Pillai left the remake citing scheduling issues and was replaced by his assistant Shaheed Khader.

Behindwoods wrote:"On the whole, we have a movie which offers excitement and also educates us about a vital concept which can prove to be a life-changer to any of us in need".

[11] Baradwaj Rangan of the Hindu wrote "The back-and-forth-in-time narrative structure helps camouflage the inconsistencies..what’s missing is the nerve-jangling tension that Hollywood routinely infuses into this kind of product, but the periodic cliffhangers keep us invested in the outcome.