Nithya Menen teamed up with director Mani Ratnam for O Kadhal Kanmani, which released in 2015. Sharing the photo, which was originally shared by PC Sreeram, Nithya wrote, "#Throwback from shoot of Ok Kanmani. Here's the photo: Mani Ratnam's OK Kanmani featured Nithya Menen and Dulquer Salmaan in the roles of Tara and Adi. On the work front, Nithya Menen …