Focusing on these areas will be very helpful in all parts of the IELTs exam, but especially in the speaking test. Best IELTS Coaching in Delhi. The most important thing is to start building your IELTS vocabulary straight away. Every time you hear or read a new word, record it and study it. Get more advice on preparing for the IELTS exam from Cambridge English Academy (CEA) Best IELTS training in Laxmi Nagar, East Delhi.