International Institute of Aviation & Tourism Management has below criteria for taking admissions to it's various courses:

Courses	Eligibility
UG Diploma	Candidate must have completed 10+2 from any recognised Board/Council.

International Institute of Aviation & Tourism Management has courses such as Certificate, UG Diploma which are primarily in the stream of Hospitality & Travel, Aviation.

Indian Institute of Tourism and Travel Management is an institute based in Gwalior, Madhya Pradesh, India, with campuses in Bhubaneswar, Noida, Nellore, and Goa. offering training, education and research in sustainable management of tourism, travel and other allied sectors. Admission test is conduct

These are the top 4 colleges for the aviation: 1. Air hostess training institute- Panache Academy. 2. Frankfinn Institute of Air Hostess Training. 3. Indian Institute of Business Management and Studies. 4. Aimfill International.

Yes, it may be possible that you may get job or not, because it matters from where you have done your certificate course.