With the luxury travel being affordable to the middle class as well, the air travel has seen a never before increase. This has promoted the country's tourism industry and has benefited India's economy and hotel industry. There are more than twenty airports in India that handle international flights. The Indira Gandhi International Airport of Delhi and the Chattrapati Shivaji International airport of Mumbai alone handle more than half of the air traffic in South Asia. Other important international airports include Begumpet Airport of Hyderabad, Calicut International Airport of Calicut, Chennai International Airport of Chennai, Cochin International Airport Limited of Cochin, HAL Airport of Bangalore, Netaji Subhash Chandra Bose International Airport of Kolkata, Raja Sansi International Airport of Amritsar, Sardar Vallabhbhai Patel International Airport of Ahmedabad and Trivandrum International Airport of Trivandrum.