Dubai

Hi Rahul,
CA job prospects are very good in Dubai. ICAI has it's a Dubai Chapter so and this is a plus point. CA salaries are is quite high. Having work experience will help you gain better salary and negotiate because quite obviously you have the experience and skills. This is a very simple logic. For more information check this:
http://www.icaidubai.org/

Hi Shahid,
To study MBA in India, take the CAT or MAT. For Dubai, you need to visit university websites as different universities have different requirements. Also in Dubai, many foreign universities have their branches offering MBA. Work experience is preferred, additionally they may ask for GRE or GMAT. IELTS is okay but check university requirements.

Hi
Check for testprep as they have an office in Abu Dhabi and Dubai both.

Hi,
Keeping aside your age please mention your education background and profile. There are many courses to choose from so be more specific.

It will depend on your prior work experience and where you are employed. Atleast 5 to 6 years work experience is recommended. I think you should also refer to job portals and check profile specific salaries and requirements.