The biggest strength of Idhu Namma Aalu is its leads — Simbu and Nayanthara. It is canny stunt casting, and this is one of the few things that director Pandiraj has gotten right in this film. The audience know that they share a history, and Pandiraj uses this fact and tries to spin a romance around this. The actors play Siva (Simbu) and Myla (Nayanthara), who have grown up in a small town but have moved to Chennai for work. Siva's father (Jayaprakash) arranges for him to marry Myla, and he, too, falls in love when he sees her. But Myla knows that he was once in a relationship with her friend Pr...