India

Eligibility for Diploma in Hotel Management:
Successful qualification of the 10+2 level of education in any stream, from a recognised educational Board. A minimum aggregate score of 50% (45% for SC/ST/OBC candidates) at the 10+2 level. Diploma in Hotel Management: Admission Process
Most institutes offering the course admit students based on performance in a relevant entrance test, often followed by a round of personal interview, wherein their general aptitude for the course is tested. Admission process generally varies across colleges. A few institutes also provide direct admission based on the candidates performance at the 10+2 level. Some of such entrance tests conducted in India are:
AIMA UGAT
AIHMCT What
BVP CET
DTE HMCT
JET Entrance Exam.

Hi Vaishali, First, you should decide what to study right. Since you have an MBA already, choosing certain courses and applying to them will be difficult. Many universities won't prefer and will evaluate your application very strictly. So, you first decide and figure out why you want to study and what you want to study. If you plan to do Ph.D. it is a different ball game altogether. Secondly, is your choice of country and university? You have to prepare your application, finances etc. According to the place of stay. The eligibility criteria also differs, and you may have to take tests like GRE GMAT IELTS TOEFL etc. There is an array of choice in front of you.