4. Ceiling on existing land.

(i) land used for factory buildings ;
(ii) land used for staff building including labour line ;
(iii) land used for roads, bridges and drains within the tea estate ;
(iv)land used for nurseries including shade trees ;
(v) land used for hospitals, dispensaries, creches, recreation centres and playgrounds ;
(vi) land used for religious institution, burial or cremation grounds ;
(vii) land used for any other building built by management as a statutory requirement under any law for the time being in force ;
(viii) land used for seed bari;
(ix) lands used as may be needed for rotational plantation to maintain the planted areas as on the commencement of this Act but not exceeding 7-½ per cent of the planted area ;
(x) lands lying within the boundaries of the actual planted areas excluding tenanted khet lands ;
(xi) land used bamboos baris but not exceeding 50 bighas.