(2)Notwithstanding anything contained in sub-section (1),—(i)any locomotive or traffic running staff shall be granted, each month, a rest of at least four periods of not less than thirty consecutive hours each or at least five periods of not less than twenty-two consecutive hours each, including a full night;(ii)the Central Government may, by rules, specify the railway servants to whom periods of rest on scales less than those laid down under sub-section (1) may be granted and the periods thereof.