Hello,
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Look You don't need any course to do for getting a job in airport as staff. But you need experience to work.
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In Hyderabad there are few coaching classes conducted by ICICI banks which are offering jobs in such places after training you for 3 months. So, if you are from Hyderabad can go there.
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If not you can get a recommendation from any of the staff worker who's working for your job.