M.Sc

Hi. You can refer this:
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/science/course/amp/m-sc-in-medical-sociology-institute-of-distance-education-university-of-madras-chepauk-chennai-289660&ved=2ahUKEwjetqWJkKvbAhXGQY8KHWhHC8QQFjAAegQICRAB&usg=AOvVaw3C56jK0gvxKpCLoE4q-fxk&cf=1.

No it's differ B.Tech has high fees as compare to integrated M.Sc.

Dear, As mentioned by you - Information security and Cyber Forensics course is under Department of computer Science and Engineering is a post graduate programme offered by Dr. M. G. R. Educational and Research Institute eligibility of which is B.E/ B.Tech (CSE, ECE, EEE, IT), /M.Sc. CS IT) /M. CA. So, after completion of your MCA you can pursue for the same. Best wishes.

You can't compare a graduation level course and a post graduation course. Still, I will tell you it's you who will be paid, not your degree.
So try to be a better student and then think of salary. SRM will surely provide you a good platform but it's you who has to perform.

Both the courses would help you get a job based on the research field in your graduation.
The applications of M.Sc. would help you in the traditional industrial field while M.Sc. alone would help you build a base for Ph.D. studies.

The application has already started, dear.
Visit the official site of Kurukshetra University.