My opinion? I'd not do either of those degrees right now. (I'd also not travel halfway around the world to go to Bucks New Uni either - look at one of the UK's world class universities such as Cranfield or City.)
Lacking aerospace, or management, experience - you have nothing to build on. Yet.
Presumably dispatchers in India are locally qualified then by the companies who employ them - in which case talk to some local companies, but my guess is that the FAA dispatchers licence may be your best starting point in demonstrating employability and competence, even if it doesn't technically work as a licence.
Get a couple of years experience, then ask yourself if a Masters will serve where your career is now going.
G