(f)obstructs an Insecticide Inspector in the exercise of his powers or discharge of his duties under this Act or the rules made thereunder, [shall be punishable-(i)for the first offence, with imprisonment for a term which may extend to two years, or with fine which shall not be less than ten thousand rupees but which may extend to fifty thousand rupees, or with both;(ii)for the second and a subsequent offence, with imprisonment for a term which may extend to three years, or with fine which shall not be less than fifteen thousand rupees but which may extend to seventy-five thousand rupees, or with both.]