Called from GIM

Got acceptance letter from Goa institute today. It felt a bit relaxed to have secured a place in a B-school. It also means that the interview which I gave was not so bad after all.
But the catch is, I have to pay GIM by 15April to secure my place there.
With my cet score, i have a god chance in Mumbai as well.
So I have to really weigh all my options before accepting/dropping this offer.