Pune is the second-most important city in Maharashtra after Mumbai and has a rich historical significance. It served as the capital of Chhatrapati Shivaji of the Maratha empire, and today, it has become an important hub of education and commerce. Non-stop flights are offered to this destination from 11 prominent locations in the nation. The carriers that operate to Pune are IndiGo, SpiceJet, GoAir, Jet Airways and Air India. The Airports Authority of India (AAI) invested almost 20 crores in the year 2012 for upgrading Pune Airport.