Director Shankar and producer AM Ratnam, who are known for their successful collaboration in films like Indian, Nayak and Boys setting the stage to entertain Tamil audiences yet again. Post blockbuster 'I', Shankar was reported to be filming 'Enthiran 2' featuring Superstar Rajinikanth and Vikram. But sources close to the director says, “Shankar and AM Ratnam likely to start 'Indian 2' and keen to rope in Thala Ajith”. Meanwhile, Ajith is shooting for untitled Siruthai Siva directorial - Thala 56, which is also being produced by AM Ratnam's Shri Sai Raam Creations.