Confused in choosing MBA...!?

HELLO Mentors,

Am working as SAP MM associate for two years and i have 2+ years of purchase domain exp, my U.G is B.tech I.T and since am a functional guy i planned to do M.B.A & decided to choose S.C.M 2 years distance program from madras university(because the cost is low) .

But i want to know

I) whether my choice of specialization is correct?

II) And as i cant do regular MBA due to time constraint, distance MBA will support for my SAP career or it will be a minus?.

III) also executive MBA and online MBA courses also offered in that university, is that better to choose?

IV) S.C.M one yr online MBA program offered in NIBM (National Institute of Business Management) without any university accredited with their own certificate(But with IAO "International Accreditation Organization" does it help in international level??) upon successful completion of course, will that doing in these type of institute will help?

since the time to submit the application is too short am totally confused Please help me in guiding through answering the above ques.

Regards,

Naveen