Which specialisation should I opt for in MBA, finance, film, event management, HR or hotel management?

All these specializations are very different from each other and therefore helping you choose any one of them is impossible. It would be good if you research a bit and decide which one interests you more and then we can help you further.

You need to ask yourself which of these you can see yourself doing in 5-10 years as a job. Find out your interest and pursue the same.