Amir Khan who requested the Chennai Officers Training Academy to allow him to spend a day with the cadets was declined the opportunity. He wanted to visit the academy mainly to promote his film. However, the reasons for denail of permission is yet unknown. Amir's latest flick titled three idiots is expected to be released on Friday and the film will also be his break through after a year's break in the industry.The news has however put him in the limelight which he most desired to promotr his film.