(a) the details of revenues and profits of Hindustan Aeronautics Limited (HAL) during the last three years and the current year;
(b) whether it is a fact that despite challenges HAL has achieved significant growth revenue and profits in 2017-18;
(c) if so, the details thereof;
(d) whether the HAL has recorded the highest ever turnover of Rs.18,28,386 lakhs in 2017-18; and
(e) if so, the details thereof?