UK has always been the most sought after country for pursuing education and exploring great career opportunities. The Island also boasts of some of the top B schools of the world. Most UK universities accept a three-year graduation system for entry into the MBA & Management programme. So if you have graduated and studied degrees like Bachelors of Arts (B.A), Bachelor of Commerce (B.Com) or Bachelor of Science (B.Sc), this is acceptable in UK as it is equivalent to a British Bachelor Degree.
Some universities may require an honours degree, which is usually equivalent to B.Com (H), B.Sc (H) , or a four year degree course like B.E.
Some universities also accept students for MBA without a bachelor degree, if they have considerable work experience and significant professional achievements.
To study in the UK, you will need to give the GMAT exam. However, there are certain universities where GMAT is not necessary. You can find out from the universities itself if GMAT is mandatory or not. GMAT is recommended by many universities in UK. However most universities are flexible and it is not mandatory to give the GMAT to apply to universities in UK. Only if you are aiming for schools like London Business School or Manchester Business School you need to worry otherwise for other universities in UK GMAT is not necessary.
To take admission in an MBA program in UK you need to give the TOEFL or the IELTS. This is mandatory for all the students who apply to an MBA program in UK.