I understand for a fresher like you, you ought to have such a query.My stand on to this would be..i am a graduate(BMS) and currently working. I think this really makes sense because then you can easily relate work with your study.
But at the same time,my sister has done her MBA and then started working.And she says it's no use doing MBA since theory and work life is taotally different.
It all depends somehow on what is your priority is it Money or is it work experience.
I would suggest you take up work and consequently study.