Why Rajamouli disapponted with Nani in Eega??

Wait..wait..don\'t be surprised with the title. Rajamouli is happy with the final output of \"Eega\", but he had some dissatisfaction with Nani. Rajamouli says \"I\'m disappointed because I worked with Nani for only few days than I initially expected. So I conceived a video song to shoot on him,\"....(More..)