courses to become a Engineering Technician

Hi Harpreet,
You should consider working on your application. Your grades are fine though 66% is a little low for the universities. It depends where you applied in the past and on what basis you have been rejected. You must be careful of not choosing an irrelevant course. You must have had relevant subjects in class 12th and a strong quantitative background. Consider applying to another course, with a stronger SOP and recommendation letters.

Please refer to the link provided below for details regarding a course as a dental technician at Imperial Institute of Management. You can read their reviews and rankings published on the web sites and make up your own mind regarding the feasibility of pursuing a course as a dental technician course.
https://www.shiksha.com/medicine-health-sciences/dental/course/diploma-in-dental-technician-imperial-institute-of-management-andheri-west-mumbai-288768

Some of the M.Sc in Aircraft Technician courses which you could opt for are as follows:
1) M.Sc in Aeronautical engineering
2) M.Sc in Air Transport management
3) M.Sc in International tourism and Aviation Management
4) M.Sc in Air Safety Management
For a detailed list, please check online.