An MBA is a broader, practical oriented degree covering all aspects of a business (Marketing, Finance, Human Resources, Operations) and then allowing you to specialize in your desired major. An MBA holds more value in the job market as students completing this course are already qualified with prior work experience. The leading business schools worldwide require above 3 years of work experience. Hence, I would recommend you to work for more years and gather more work experience which will strengthen your profile and help your admissions in a good B-school.
You will need to take GMAT and TOEFL for admission. For more information on these exams refer to the 'Prep Talks' and 'Test Drives' sections on www.educationtimes.com. Have a look the top 100 business schools offering the MBA, listed on www.ft.com. With regards to the admission procedure, you will be required to do the following: appear for the entrance tests, finalize your schools, complete the online application form and then mail the supporting documents (such as resume, recommendation letters, essays, financial documents, mark sheets, transcripts) to the university. Remember to start applying to universities at least 1 year prior to the course starting date.
(source: http://counsellorforum.educationtimes.com/reply.aspx?id=86459)