The producers of Mahesh Babu's 'Dookudu' have approached young tiger Jr NTR recently for his call sheets but the actor has rejected them saying that he is busy till 2015. This has disappointed the producers and reportedly they were very upset over NTR's rejection. Currently, NTR is busy wrapping up his next release 'Dammu' and is set to join the shoot of his new movie 'Baadshah' under the direction of Seenu Vaitla. Few days ago producer KS Rama Rao signed NTR for a whopping 12 crore for his new movie thus making him highest paid hero in Tollywood. This movie will go onto the sets once NTR completes 'Baadshah'.