Hello Dhanya Kurangi

You completed the B.Tech first year you should maintain the CGPA above 9 because these will be added in GRE. You should develop the Communication skills & English Proficiency. GRE Exams is conducted in two ways. One online mode another Offline mode. GRE mainly consists of 3 sections. They are Analytical Writing, Verbal Writing, Quantitative Reasoning. You have to work hard to crack the GRE Exam. 

https://studyabroad.careers360.com/articles/gre

I am attaching the more details about GRE Please look it.

Hope this will helpful

All The Best.

Hello Dhanya,

For preparing GRE first of all you have to be thorough with the syllabus. You can buy some online books for preparation. You can do some mock tests of the previous year questions. You have to practice well, practice makes a man perfect. So that you can achieve.

All the best!