New Delhi, Nov. 13 -- A year ago to this day, IndiGo, on its 18th birthday, announced the launch of IndiGoStretch, its business class product, on a flight between Mumbai and Delhi. The airline had announced that it would induct 45 aircraft by the end of December 2025 and operate 12 routes in the country with it. While it may remain on track to induct 45 planes by next month, an achievement in current times due to supply chain shortages, it has significantly altered its plans for the 12 routes in the country. The airline had not announced which 12 city pairs these would be, but since the focus was said to be on the busiest and business routes, they were likely to be the flights between the six metros, barring the short routes between Benga...