the next thing to decide was either to go for full-time or part-time MBA.
This is the main idea of the first sentence. I don't think it is an important enough idea to be included. I think the last part of this sentence should be modified to express your main interest, you unique passion/inspiration.
I chose to go for part-time MBA since I feel that continuing with my work would help me implement
Oh, and because of this sentence, that previous sentence is especially unimportant.
I like your theme! If you change that first sentence the way I suggested, you can make this all about your interest in... what? It can be anything cool. Blue Ocean Strategy? Transformational Leadership? What is your special interest?
Then, INFUSE the last sentences of this with a few words to specify exactly how you will benefit your current organization with knowledge from your research during the mba. Maybe you will even write your thesis on something directly related to your organization (i.e. like action research). So... I guess I am just finding ways to put this essay on steroids, ha ha, and enhance it. It is already very good, obviously. Thanks for all your participation in EF lately!