Leslie Thng, CEO, Vistara has said that his airline is focussing on a leaner cost-structure as well as exploring newer avenues to supplement earnings. He also said that Vistara aims to have 70 planes by 2023. He further said that full service carriers look to be relevant more in the current scenario due to less density of seats in the cabins. Vistara currently has a fleet of 46 aircraft.