Mumbai Pav bhaji has an interesting history to it. During the era of textile mills, workers had very less time to eat also the lighter meals were preferred to heavy meals. As they had to return back to the physical work also heavy meals made them feel sleepy and lethargic. So a vendor created a lighter dish where he replaced pav (pao) against roti and rice was replaced with bhaji.
Tasty pav bhaji now serve all over india, specially mumbai people love it!!!!!