3. (1) No person shall print, publish, import, sell, distribute or in any manner put into circulation or keep for printing, publication, sale, distribution or circulation of any note-book. (2) Nothing in sub-section (1) shall apply to any notes, comments or explanations dictated or given in writing by a teacher in a class for the use of the students of that class: Provided that such notes, comments or explanations shall not be reproduced in writing or otherwise and circulated for the use of any other person.