I want to do MBA in aboard

Hi Kannan, MBA is offerred in practically all the Universities in Australia. Some Universities like University of Melbourne, MaQuarie, Sydeny, Wollongong, UNSW, ANU, etc  require students to come with 2 to 5 years of work experience.    But lots of Universities like UTS, JCU, Univ of Tasmania, La Trobe, etc allows fresh Graduates to apply for MBA. 

First, select the right program ( Specilisations- like Marketing, Finance, IB, Systems, etc), seek guidance from University websites for entry criteria's, find out if the fees structure matches your affordablity levels, do exams like IELTS ( a score of 6.5 plus is mandatory), apply well in advance for admissions and then apply for visa once your admissions comes through. 

The process is intensive and you might definitely need the assistance of a Overseas Education counsellor to assist you in the visa and also selection process. 

You can look for cities like Perth and Brisbane as well apart from the most popular Sydney and Melbourne for good Universities.