Notwithstanding anything mentioned here above, the following demand or claim shall not be allowed to submit –
(a) Which is contrary to the Constitution of Nepal;
(b) Which would affect other’s interest due to being based on untestified  or baseless allegation;
(c) Matter which is prejudicial to the personal conduct of any worker or employee;
(d) Matters unrelated to the Enterprise; and
(e) Where a period of two years has not elapsed since the date of last collective agreement.