MFin vs M7 MBA as an International - For IB and beyond

I am about to begin my career as an IB M&A analyst in India this year and I could either:

• get one year of work experience
• go for an MFin (say MIT) and try to break into IB

or

• continue with banking in India
• break into PE (say, CVC, TPG, Bain Capital, General Atlantic) 
• go for an M7 MBA (say, Columbia or, if lucky, Wharton)

I want to get some clarity for each of these paths -

1. Would it be possible to break into IB (BB/EB) as an analyst after MFin? If yes, would I have a shot at post-analyst PE or HF roles?
2. Would I be better off going for an MBA and hoping my past buy-side experience helps me get some finance job (non-IB because I don't want to do IB all my life)

I realize that it is very hard to break into PE post-MBA (especially as an international) which is why I want to know whether an MFin would be a better choice for me. Would the answer change if I plan to come back to India by the age of 30-32?

My profile:

• Male
• Indian target UG engineering (IIT Bombay/Delhi) - 9 CGPA (or ~3.75 on a 4.0 scale)
• GMAT 770 and done with CFA Level 2
• Incoming M&A at a single-MD boutique IB (few big deals a year - consistently top 10 India M&A league tables)
• Relevant experience: investment research intern with a small investment team ($300 mm book) at a "big" mutual fund, data science intern at a London-based MM asset management firm