Section 31(b) in The Punjab Development of Damaged Areas Act, 1951
(b)obstructs or molests any person in the service of an Improvement Trust, any person acting under the authority or directions of such person, any person with whom the Trust has entered into a contract or any person acting under the authority or directions of such person in the execution of his duty or of anything which he is empowered or required to do under this Act, or
