Students usually fail because of IELTS preparation without a proper understanding of exam syllabus pattern, Lack of time management during the IELTS exam, Out of focus and concentration could lead you to miss out on questions during the IELTS listening exam, Lack of time to prepare for the IELTS writing exam, Unable to use paraphrasing or lack of vocabulary during IELTS speaking exam, Other than this there are other several reasons like the use of old syllabi or study material, Preparing without a plan, and lack of motivation.