Business/Entrepreneurs earn the maximum profit as they take the maximum risk, and these entrepreneurs have chosen and flourished in Mumbai. It is this entrepreneur's profit which is getting taxed.. not the steel from Jharkand. Do not confuse between the two.
It is the callous 'planning era' step-motherly treatment towards Mumbai who have not re-invested the tax money back into Mumbai to support the increasing load of migrants pouring into the city.
More cars on the road in Delhi and less in Mumbai because the British made local train network carry 10 times the capacity of Delhi.
Delhi is a city made up primarily of self-aggrandizing bureaucrats and corrupt politicians who only beautify their own surroundings at the cost of the really deserving i.e. Mumbai, Bangalore, Hyderabad etc.
