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IdentityPersonal attention - The most important factor is this. If personal attention and mentoring is missing, don't join. When you are evaluating institutes, go and check their classrooms for batch size. Ask for a demo session, if possible.
Faculty - In addition to point 1, look for faculties who have gone through the whole process as they can understand you better and guide you better. Ask for faculty details. See if you can talk to them.
Content/Material/mocks - Don't think this is a differentiating factor these days because almost every coaching institute is giving more or less the same content and volume of the content. But look for institutes where content is getting frequently updated to match the recent trends.
