Canada

You can go for MS programs, or if you prefer management, then go for MBA or PGDM.

Hi,
1. Not all exams are not necessary, take either of GRE or GMAT and one from TOEFL or IELTS.
2. University of British Columbia - Sauder School of Business, McGill University - Desautels Faculty of Management, York University - Schulich School of Business, Western University - Ivy Business School, University of Toronto - Rotman to name a few.
3. Yes, work experience is mandatory except a couple of bottom ranked universities.

Sorry, your scores are very low. At least 6.5 overall with no less than 6 bands in each component is the minimum eligibility criteria to study in Canada. Retake the IELTS is my suggestion.

https://studyabroad.shiksha.com/canada/be-btech-in-computer-science-engineering-colleges-ds
check out this link. And, also check for eligibility criteria laid out.

Yes, supply chain management is the upcoming field with growing scope in it. It is a good course.

Hi,
You can check your chances of getting admission in your desired college from the link below. https://www.shiksha.com/college-predictor
Thanks.

Sorry, but 6 bands is quite less. I suggest giving the exam again and score a minimum 6.5 overall with a minimum 6 in each component in order to be eligible to get admission in Canada.

Go for Bachelors course, it is worth it. All the best.