M.Sc

Hi Priyanka,
The fee structure has not been disclosed by the institute. You should get in touch with the institute directly for the information. Also, I don't think the institute offers M.Sc in fashion technology. There are other postgraduate programs although, which you can check here:
https://www.shiksha.com/college/mksss-school-of-fashion-technology-narhe-pune-33975

IELTS is a must for studying in Australia and Canada.

For M.Sc in CA, you must have bsc degree in same field or equivalent.or
B.Tech in IT or CSE or equivalent stream.
Minimum of 50% in your graduation

Kindly go through the admission process mentioned in the link below:
https://www.shiksha.com/science/course/m-sc-in-mathematics-madras-christian-college-tambaram-sanatorium-chennai-110334

Placement -placement scenario is very excellent, it is confirm that if you have taken admission in this college your placement is confirm because companies know Amity University is one of the reputed universities so interviewers know which student should be selected and which should be not.
Internship -internship is provided by college in courses like H.M they send to hotels because they will learn there how we have to work what equipment's are they using and many more so internship is must for being professional in this field.

No, once you are enrolled in an integrated course, there is no option to opt out for a UG degree.

That depends on the marks that you get in the entrance exam.