(a) the number of passenger aircraft purchased during the last three years indicating the names of the supplier companies and the prices paid for each aircraft;
(b) the details including the time of payment and the name of agency through which payment was made;
(c) whether there was difference between the actual price of the aircraft and the payment made to the said agency;
(d) if so, the details thereof alongwith the reasons for making such payments; and
(e) the steps taken/proposed to discontinue such practice?