Which are the popular Entrance Examinations for MBA, in which I have to appear ?

My first point would be, do not even think of leaving your job, since you are working in the back office, of an International BPO. I presume you are based in Mumbai. If that is the case, then you can look at doing your, three year part time, Masters in Human Resource Development and Management (MHR

I suppose you can do MBA through regular course and if that is feasible in your case then you need to contact Mumbai University. There are several private institutes also. But as you said you could not score high marks in your examinations and so you should judge yourself if academics is really your