Yeah! You are eligible for MSc Computer science at IIT's. The basic eligibility criteria for IIT JAM is that you should have 55% marks or 6.5 CGPA in your Bachelors Degree.
If you want more info regarding IIT JAM 2021 click the link provided below:
https://university.careers360.com/articles/jam-eligibility-criteria
I hope my answer helps you. All the very best for your future endeavors!
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