IELTS

Hello,
Based on the admission requirement of the respective university, you should have scored, 6.5-7. They are good scores to get into Canada colleges and universities. But, 5.5 in section can be a matter of concern, and you will have to re appear for the IELTS exam.

Hi Ramneek,
You must explore options, visit College and university websites, check the programme offered, curriculum, career outcomes and thereafter decide what is best for you. Every student is different and what seems best for a Science student in general may not be viable for you. So, decide for yourself. Also, Diploma programs in general studies are difficult to find in Canada, you will find mostly technical and engineering programs. There are popular colleges for Diploma programs which you can explore like Humber College, Niagra College, Red River College, Lambton College, Algonquin College, George Brown College and many more

Yes, you are eligible.

Hi,
It totally depends on the universities that you are applying in. Some university require IELTS some don't. It is not necessary, but it is always advisable to take IELTS before you go for an interview in the Embassy. That shows that you are able to understand and speak the language and you would not be having any problems.

Hi,
To study abroad, you must take IELTS is a test for English language proficiency, it is not a course. Either you must take IELTS or TOEFL. Depending on where you want to study you may also have to take SAT for undergraduate programme and GRE for MS. If you want to pursue B.Com abroad you can do that, your class 12th percentage is good. Take the IELTS or TOEFL. You must also decide where to study. Check different colleges, their websites, admission requirements, deadlines, budget etc. And, choose your option. US, UK, Canada, Australia, New Zealand are popular options.

Yes, of course, it is accepted.

No, your marks in any exam cannot cancel your visa.
Hope this helps you.

You can consider following colleges in Canada:
Western Ontario
Humber College
University of Regina
University of Toronto

Yes, you can apply for post graduate Diploma. Thanks.

You can give exam throughout the year. Anytime, the result is declared after 13 days of exam. I think you should prepare for your exam thoroughly. Complete your intake till May-June. You should give exam in January.