For switching to the world of high end finance, making it to an Ivy League business school becomes important to help overcome the technology experience baggage. A higher GMAT score would be helpful here. These schools see a lot of applications from Indian IT professionals and tend to limit their proportion in the overall class (kind of an unwritten rule),which results in higher cut-offs. Building relationships with professors in these colleges is helpful in the admission process. You should be clear whether you’d like work from home in the long term or if it’s just an interim measure as this can impact the options you choose at this point of time.