Civil Engineering

Unfortunately, you cannot get regular Diploma in engineering certificate based on Diploma from institution of civil engineer, unless you join and undergo formal education in a polytechnic. You can seek lateral entry admission in 2nd year of B.Tech in universities such as Manipal, etc. based on your Diploma earned by distance learning.

Below mentioned are the best colleges in Canada for MS in civil engineering:
1. University of Waterloo.
2. University of Ontario.
3. University Of Toronto.
4. McGill University.

I think, there is no option to get admission through scholarship.

Hi Dear,
For admission into IITs and NITs, you have to appear JEE Mains as well as Advanced. There is no other gateway for admission.
All the best.
Thank you.

Not, you should go for marketing and international business management as a dual specialization because you are already an engineer. Now, there no need to go for those subjects which you have studies in engineering. Otherwise, your placement option will be narrowed down.
Good luck.

You can apply for job applications offered by companies. You can also write GATE exam and apply for PSUs through GATE score.