Bachelors

Hi,
Yes, you are eligible to apply. Take your IELTS. An overall score of 6.5 is required for gaining admissions to MS programs in Australia.

Please refer to the link to know about the colleges in Jaipur offering animation.
Link: https://www.shiksha.com/animation/2d-3d-animation/colleges/colleges-jaipur.

Yes, you can pursue Masters in event management.

Confused in terms of courses after BCA. You search and confusion rightly ends here. There are a lot of options available in terms of study. For those interested in IT and computer applications, MCA is a perfect choice. There are also various post-graduate Diploma certifications for aspirants wishing to specialize in various skills. Take your pick of the best PG degree and diploma programs in terms of courses after BCA.
List of the best courses after BCA:
MCA, M.Sc IT, M.Sc Computer Science, MBA, PGDM, PG Diploma, Certificate courses in Programming, Hardware & Networking, Web and Graphic Design.

If you have interest in designing then you can surely go for it.