The Southern cities are the highest revenue generators in India, and has the highest concentration of white collar jobs...honestly, how does Varanasi compare to any of the main Southern cities?.
You missed my point.
Since southern cities have all those good features, that's why they are better equipped with air assets. The new investment should go for weaker zones to bring them on par.
Once done, hopefully southern cities will not have monopoly to claim all white collar jobs, western, eastern and nothern cities will grow as well