Will Mumbai get a second airport? More important, given that its international and national air traffic has risen only marginally, does it need another one? Or is it simply yet another mammoth land-grab operation under way? If the Airports Authority of India (aai) has its way, then the answer to Mumbais messy and poorly-managed Chhattrapati Shivaji Airport is simple - build a new one at an estimated cost of Rs 20,000 crore, a figure which is bound to escalate in future.