India

You can explore -
- MICA
- MBA (Marketing )
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MBA in marketing from top b school will have more scope and relevant to advertising industry. Top GMAT colleges -
- IIM
- IIFT
- ISB
- XLRI
- MDI
If you have 6 year work experience then you can go for executive MBA from top b school like IIM, FMS, XLRI etc.

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A good college will give admission on basis of entrance or similar test. Few renowned colleges for MPH are -
- John Hopkins ( abroad)
- Harvard university ( abroad)
- University of Washington ( abroad)
- PGIMER Chandigarh
- JIPMER, Puducherry
- NIE Chennai
- Jamia Humdard
- TISS Mumbai
- IIHMR, Jaipur
- Punjab University
- IPH, Gandhinagar
- UNIPUNE
- University of Hyderabad
College for online MPH -
- Coursera ( university of Michigan )
- Online / part time ( John Hopkins)
- online and on campus ( Harvard)
- online ( UC Bekerley)
- e phm ( IPH)
Online certification and Diploma in health courses are valid but MPH is more relevant in regular mode.