Hyderabad: Andhra Pradesh government is planning to develop one Greenfield international airport at Bhogapuram, near Visakhapatnam and upgrade a few more in the state. According to the Socio Economic Survey 2014-15, which formed part of the (2015-16) budget documents, the airports in Tirupati, Vijayawada and Rajahmundry are to be modernised. The upgrade would be to international standards. The state government is also planning to develop six no-frills airports.