(a) the number of airports currently working under Public Private Partnership (PPP) mode;
(b) the total number of airports privatised for their maintenance and operation;
(c) whether the International Air Transport Association (IATA) has found any shortcomings in the privatisation of airports model, if so, the details thereof;
(d) whether the Government has assessed the problems and facilities as well as gains/losses from the privatisation of the airport and if so, the details thereof; and
(e) whether there is a big difference between the maintenance and facilities of airports operated by the private airlines and the Airports Authority of India in the country and if so, the details thereof?