Hi,
I am from Mumbai,. 2 years in UK and till date I've been unable to find Mumbai style pav bhaji anywhere! Any suggestions on authentic Mumbai Pav bhaji anywhere?

Try masala zone:

http://www.masalazone.com/taste/street-food/

It's amazing food and my Indian friends rave about the authenticity of it.

Failing that, try Southall in west London, lots of very authentic and delicious places to choose from, I've no doubt some of them will serve this.

Not in Southall restaurants, Southall is exclusive Punjabi food.

That's crap, I've had dosa in Southall before, nothing punjabi about that, so there's no reason why pav bhaji won't be available