(a) whether it is true that currently order books of Defence PSUs is alarmingly low and which will not sustain them beyond 2020-21;
(b) if so, the details of orders with various Defence PSUs including HAL, Bharat Dynamics, Mazagon Dock, Goa Shipyards, etc.;
(c) the reasons for very low order books of Defence PSUs; and
(d) the steps taken by the Government to formulate a foolproof strategy to ensure that the Defence PSUs do not remain idle for want of orders?