Even all the major businessmen of mumbai are from North, Take Birlas, bajajs, Jindals,or Naresh Goyal..
"Local" people in mumbai form the bottom of the pyramid
delhi on the other hand is 20 Yrs ahead in Infrastructure and looks...Recently there was news that Delhi has taken over Mumbai in No of flights.. And if it comes to business and finance, NCR is all set to take over Mumbai (which is financial capital because of north indian busines magnates )