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In your case it is known as a male steward, not an air hostess:
* Eligibility Criteria for a male steward training programme :
-One needs to pass plus two/ or a graduate degree with a diploma/degree in Hotel Management or Tourism Management.
-The aspirant must be eligible to hold an Indian Passport and should be below twenty-five years of age with a minimum height of 162 centimeters. The weight should be in proportion to height.
-One must be unmarried, with normal eyesight of 6/6 uncorrected vision in each eye.
-Fluency in English, Hindi and knowledge of an international language is an added advantage.
* Personal Attributes :
Common sense, sense of responsibility, initiative, friendly outgoing personality, politeness, physical stamina and the capacity to work for long hours on one's feet, ability to react quickly in times of emergency and a presence of mind, systematic approach, unruffled appearance, a well-modulated pleasant voice, and a proportionate figure with a graceful carriage.
For further help, below is the list of courses you may consider :
-Advance Diploma in Airline Cabin Crew and Hospitality
-Air hostess/ Flight Steward Training
-Cabin Crew Training
-Diploma in Air hostess and ground handling
-Diploma in Airline Cabin Crew
-Certified Professional in Cabin Crew Services
Some of the institutes offering the course are :
-Virgin Paradise Airlines Training Private Limited
-Marks Aviation Academy Pvt. Ltd
-Cloud9 Air Hostess Training Institute
-IIFLY Aviation Training Centre
-Career Guidance Institute
-Frankfinn Institute of Air Hostess Training (F.I.A.T.)
-Jettwings Institute of Air Hostess Training and Management

Following are the colleges for the same:
Birla Institute of Technology and Science, BITS Pilani
IIIT Hyderabad
Dhirubhai Ambani IICT, Gandhinagar
Vellore Institute of Technology, Vellore
Birla Institute of Technology, BIT Mesra, Ranchi
PSG College of Technology, Coimbatore
Maharashtra Institute of Technology, Pune
National Institute of Engineering, Mysore
Manipal Institute of Technology, Manipal
R.V. College of Engineering, Bangalore
SSN College of Engineering, Chennai
Amrita Institute of Technology and Science, Coimbatore
Thapar Institute of Engineering and Technology, Patiala
SRM University, Chennai
SASTRA University, Thanjavur
BIT Sindri
Mepko Schlenk Engineering College
Nirma Institute of Technology, Ahmedabad
Thadomal Shahani Engineering College Mumbai
Shri Ramdeobaba College of Engineering and Management