(a) the total number of employees of Group A, B, C, D in Railways upto 1st October, 2016;
(b) the number of employees out of these which are permanent and regular;
(c) the number of employees out of these total employees who are working under contract system; and
(d) whether the Railways has appointed the workers for manual scavenging and if so, the details thereof, State-wise including Uttar Pradesh?