Masters

You can do Masters in civil engineering or any of its specializations from few of the IITs after qualifying the GATE exam with good marks.

Go with the post graduation because it will help you to crack good, better and highly paid jobs.

Hi Simmi,
You can get question papers either online or can get the books for preparation of the same.
Here are some links you can refer for the sample papers (and books too):-
http://eduvark.com/nift-cat-entrance-exam-sample-question-papers-52928.html
https://www.shiksha.com/design/fashion-design/articles/nift-entrance-exam-previous-years-papers-nift-cat-questions-2010-2015-blogId-12091

You can do this Diploma course in New Zealand.
After one year study, you will get one year work search visa. In getting a job, you will get 2 year work visa and you can apply for PR.

Hello! Terming yourself as an average student, you can expect getting only an average college for pursuing PG. Unless you work hard and stop considering yourself as an average person, things will not change for the better.

Hello Vinayak,
Chances could be there but not the high ranked ones. You should start writing to the colleges for profile specific queries and they will guide you. Your IELTS score is low for a post graduate course but you can be offered a pathway or bridge course. It is best you check with the colleges directly before applying and clarify your doubts.