In the landscape of modern Tamil cinema, very few films capture the delicate, fragile nature of urban relationships as beautifully as Mani Ratnam’s O Kadhal Kanmani (also romanized as OK Kanmani ). Released in 2015, the film became an instant classic for its mature take on live-in relationships, its soulful music composed by A. R. Rahman, and the electric chemistry between its leads, Dulquer Salmaan and Nithya Menen.