Air Asia recently announced new routes from Mumbai to Kochi and Kolkata, and additional flights on the Mumbai-Bengaluru route, four times a day. Mumbai-Kochi route will fly six days a week except Tuesdays. Operations will start from April 15. In the wake of the recent Jet Airways crisis, Air Asia and Vistara are adding more aircraft to fill in the unused slots. The capacity shortage and Delhi airports have led to the hike in the airfare to 40 per cent.