Whoever, being legally bound to attend in person or by an agent at a certain place and time in obedience to a summons, notice, order or proclamation proceeding from any public servant legally competent, as such public servant to issue the same, intentionally omits to attend at that place or time, departs from the place where he is bound to attend before the time at which it is lawful for him to depart, shall be punished with simple imprisonment for a term which may extend to one month, or with fine which may extend to one thousand five hundred rupees, or with both; or, if the summons, notice, order or proclamation is to attend in person or by agent in a Court of Justice, with simple imprisonment for a term which may extend to six months, or with fine which may extend to three thousand rupees, or with both; or, if the proclamation be under Section 87 of the Code of Criminal Procedure, 1898, with imprisonment which may extend to three years, or with fine, or with both.