Masters

Here is a link for all the best colleges in Maharashtra:
http://m.htcampus.com/design/interior-design-colleges-courses-in-maharashtra-state/

CSE would be a wider option for you though software is a part of computer science and will not be so vast. CS would be more suited if looking for thesis or research. Software engineering will be more suited for job opportunities.

It depends on which stream/branch are you in. If you do mechanical engineering then it's well and good to do Masters from Germany.
There are many universities where you can apply; university selection depends on which courses are you applying for.
Some universities are:
1. Technical University of Munic

The following minimum scores are required to be considered for admissions into the MS Software Engineering Program:
Quantitative + Verbal (GRE q+v) score = 294 or higherAnalytical Writing (GRE AWA) score = 3.0 or higher

Hi,
You know both physics and marine are differ from each other. This is better for you that you can continue the same subject in M.Sc as well. Yes, after completing the B.Sc in physics, you can pursue Masters in marine geo physics, if you want.

Hi,
You can consider the below mentioned universities:
1. SP University.
2. Vallabh Vidhyanagar – Gujarat.

Canada currently is very welcoming in terms of job and education both whereas New Zealand boasts of some of the world known MNCs based there but getting a job might not be easy. Apart from the job market, you need to see the financials as well. Degree from both the countries is recognised all over t