Should I join NMIMS Mumbai (MBA core) or wait for another year

Waiting for another year and dropping NMIMS is only justifiable if you are certain to get into the top 5 like IIM ABC and FMS. Otherwise forgoing this opportunity might not be a wise decision mainly because

• Your work experience of 22 months is the right time to do an MBA
• CAT is extremely certain. You might have been able to make it into NMIMS, but there is no guarantee you will be able to clear CAT next year again
• NMIMS has a 100% placement percentage so you will definitely end up with a good package
• The brand name is more than enough to add to your CV 

Moreover, if you are willing to enter the Marketing sector, it’s still not late as FMCG don’t prefer candidates with much work experience. But if you are interested in Strategic Management, you can wait for a year and target the top 5 B Schools. 

So the end note is, forgo the offer if you are certain you can make it into the top 5 else grab this opportunity.