Nagarjuna's upcoming venture under the direction of 'Akasamantha' fame Radhamohan is Gaganam is set to be back drop of Air India plane hijack.Gaganam is an experimental film in witch hijack of an Air India plane to Kandahar in 1999.According to Sources there will be no Heriones and Nagarjuna playing in lead role.Gaganam Movie shooting completed in short span of time and Nag is missing the film crew.Dil Raju is producing the telugu version of the film while Prakash Raj producing the Tamil version..This movie is going to release in August..