(a) the average income generated from a First Class coach, Second Class coach and Sleeper
coach separately including the income generated through the reservation of passengers;
(b) whether the income generated from a Sleeper coach is more than the income generated
from a First Class coach or from a Second Class coach;
(c) if so, the steps being taken by the Railways to add more Sleeper coaches in railway services
keeping in view the above fact;
(d) if not, the reaction of the Railways thereto; and
(e) the corrective steps taken by the Railways in this regard?