Why should I write IELTS ?
You write IELTS to prove your proficiency in English. Normally you confront this situation when you are about move to a country where the primary medium of communication is English. Some take the IELTS examination to advance their careers as most corporate companies appreciate professionals with English proficiency.
You should take IELTS if you are planning to immigrate to English speaking countries such as the UK, Canada, Australia, New Zealand and the US. Any student planning to pursue his/her higher studies in an English speaking country should also take IELTS.
The potential immigrants should take IELTS general where as those who are looking for higher studies should take the academic module of the IELTS test.