(a) whether it is a fact that the Supreme Court in case of R.K. Sabharwal Vs. State of Punjab as well as J.C. Mallick Vs. Ministry of Railways has held that `the Vacancy Based Rosters` can operate only till such, time the representation of persons belonging to the reserved categories reaches the prescribed percentage of reservation;
(b) if so, indicate the services i.e. Class I, II, III and Class IV category/grade under the Ministry of Agro and Rural Industries and Public Sector Undertakings/Autonomous/Attached/ Subordinate Organisations under its control where the representation of persons belonging to the SC/ST categories has reached the prescribed percentage of reservation and because of which `Post Based Rosters` have been introduced in place of `Vacancy Based Roster`; and
(c) furnish the reasons if `Post Based Rosters` are introduced in place of `Vacancy Based Rosters` in those categories of services also where representation has not reached the prescribed percentage of reservation?