UAE IELTS & English tests - Prep, validity & retakes

Should I start preparing for the English language exams like IELTS now or wait before applying in UAE for a MBA?

Do I need to give IELTS exam for my master's abroad and am I okay to give it if required in UK/UAE for a Bachelor's?

Is September intake feasible for me given my current preparation and degree status in UAE for a Master's?

What preparation is required for IELTS for my study abroad plans in UK/UAE for a MBA?

Did my brother give the IELTS exam for his studies abroad in UAE for a Postgraduate?

Why was I told earlier that I have to give IELTS exam when now I am being told it is not compulsory in UAE?

What is your plan regarding IELTS preparation and meeting English language requirements in UAE for a Master's?

Should I apply for the IELTS exam now or after taking mock tests in Singapore/UAE?

Is it better to prepare for the GRE if I am targeting scholarships in Singapore/UAE for a Master's?