The AAI has initiated and improved the infrastructure and upgraded the Bhopal, Indore and Raipur airports to international standards and even government has initiated process of declaring these as international airports
The government has already given in-principle approval for development of the Greenfield airport projects as international airports . And has proposals for airports at Mopa, Kannur, Navi Mumbai, Shirdi and Kushinagar in UP.
Yeah it seems that the present NDA government has revived its earlier proposal for new airport in UP. They it seems are looking for area that is about 150 kms away from Delhi. This distance of 150 km restriction has been demanded by the current operator of Delhi airport, GMR Infra.