10. If at any time after the making of a declaration under section 7, the newspaper to which the declaration relates is printed or published in a language, with a periodicity or at a place, other than the language or languages, periodicity or place shown in the declaration, the declaration shall become null and void, and any further printing and publication of the newspaper shall be unauthorised unless a fresh declaration under section 7 is made, but nothing in this section shall apply to a temporary change of the place of printing or publication for a period not exceeding thirty days at any one time, if within seventy-two hours of such temporary change the District Magistrate is informed of it in the manner prescribed.