(a) whether the land on lease basis was allotted in 1983-84 in Delhi for the habitations of the Harijans;
(b) if so, the reasons for the non-establishment of Harijan habitation so far;
(c) whether the land has been encroached upon by the land-mafia; and
(d) if so, the steps taken by the Government to get the land free from encroachment?