New Delhi, March 27 (ANI): Bollywood actors Arjun Kapoor and Kareena Kapoor Khan are leaving no stone unturned to promote their upcoming romantic comedy-drama film 'Ki and Ka.' In order to captivate the audience attention, Arjun Kapoor even went on to wear red high heels in one of the promotional songs in the film and also at an award function. The '2 States' star said the concept and the star cast of the film is the USP of the film. 'Ki and Ka' follows a young, married couple whose relationship challenges the gender roles placed upon women and men in Indian society. Written and directed by R. Balki, the film will be released in India on April 1, 2016.