GRE Eligibility

https://studyabroad.shiksha.com/exams/gre
Use this link to know about GRE.

In simple words, eligibility means to fit on it, or to be desirable and it means you can choose any one of them it's not compulsory to choose all of them you can choose any one of them.

Your CGPA and GRE score are both not amazing. You can get admission in the top Colleges only if all other components of your college application - like essays, recommendation letters, SoP, extra curricular etc. , are superb. If not, then you should plan and spend some time on building your profile before applying to the top colleges in US/Canada.

Hello,
GRE is to be taken if you desire to pursue your Masters in the USA. You can take the GRE , to help you prepare for the exam you may refer to its official website https://www.ets.org/gre and access the wide variety of practice tests, downloadable materials etc. A practice test before starting the actual preparation is recommended, this will help you understand your weakness and strengths. Regular practice tests thereafter will help you check your progress. Around 3-5 months is ideally required, you may create your study routine as per your convenience and stick to it. Time management is the key.

Hi Kamal,
I must say the academic profile is excellent. Do well in your GMAT. Also, prepare very good MBA essays.