The term CAD (Computer Aided Design) can be used almost all the branches of engineering.
However, Mechanical and Civil Engineers uses these software for Product design and development.
In India, these courses can be of short durations, MS in CAD and MS in tool design are highly valued for a mechanical engineers.
Interested in Solidworks
However Masters in CAD along with FEA and FEM, what's the usual procedure in abroad, which may not be of your interest. If you are looking for modeling alone.
I agree with Sanjay, SolidWorks, Pro E, etc. can be used in most branches of engineering including industrial engineering. However, it is primarily used for product design. For example, I work for a company that uses it to design high pressure and high temperature frac units for the oilfield industry and I am a mechanical engineer. I know some friends that are aerospace engineers and they use Pro E or CATIA to design airplane wings or hulls. I think it really matters on the company that you work for as opposed to your degree for the most part.
In terms of where to learn it, I am sure there are thousands of courses offered worldwide. I know I took it in my last year of my degree as a couse at the university. In terms of masters work I am not sure how much you will have a chance course wise to learn it. It really depends on the institution you are going to. If it is something you really want to do you can go online and download a student copy of the software and go through tutorials. Although there are courses most of what you learn with solidworks or any of the softwares comes from real world experience so start some side projects of your own and experiment with the software.