Need some perspective

Been a longtime lurker on WSO. It's amazing how much great advise there is on this forum. So here's my situation:

I have attended a top 10 B-school in India and worked in a middle office role for ~2 years. Moved to a corporate finance role in a Fortune 100 company ~2 years back but the corporate culture (read work culture, office politics, etc) is just awful here. It pays pretty well for the country (~$40k) but is peanuts compared to the global scale. I have been admitted to a post experience Master's in finance (LBS & LSE). Since it's less expensive than an MBA, much shorter (2 years of MBA vs 10-14 months for the masters) and gives access to similar opportunities, it seems like a great way to break into the IB space in London.

So far, I've been focused on the energy space but would love to shift focus to TMT, with a long term goal to break into the buy side. All things considered, it's still a significant financial investment (fee, opportunity cost). I understand the IB space is incredibly competitive and there is a chance I don't break in. What's reputation of these courses in the high finance circles? Do you guys think someone with my profile has a good shot at getting into a BB right after?

Would be great to have some inputs from people already in the space.