Hi Aryaman

Yes, you will have to take IELTS exam as they require english proficiency test as a transcript in their eligibility criteria on their official website. Your chances of getting selected depends upon your application. It has holistic process for admitting students.

So, everything including you academics, extra cirriculars, vounteering and achievements will count in you getting selected to the university.

You need to request for scholarship while filling application or there can be another application for scholarship. Different courses have different scholarships so you need to check for the course you wish to apply for

https://www.uva.nl/en/education/master-s/scholarships--tuition/scholarships-and-loans/scholarships-and-loans.html

Click on this link to find out scholarships provided to international students. You can also email the university for any assistance regarding filling application and scholarships

Hope this helps

All the best