We have sample papers and Mock Tests for GITAM GAT. You can solve these papers. This would help you to understand how much you're prepared. You can also solve Jee Main Sample Papers since the syllabus for both the exam is same.
https://engineering.careers360.com/articles/gitam-gat-sample-papers-mock-test
https://engineering.careers360.com/articles/jee-main-question-papers
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