Future of Aviation Industry
First of all, these cities can not only be connecting points or feeders for domestic routes, but must instead become real hubs that provide connectivity to different international destination. Secondly, secondary airports are considerably required as larger airports exceed capacity. Most major global cities have more than one (often up to four) airports serving various roles such as international hubs, low-cost airports (generally with lower airport taxes) and city airports offering easy access to and from the city centres.
Lastly, to tap into wide pockets of demand, India must invest in more effective communication lines between airports and metro and suburban areas.