However, we may state that there is another good reason for up holding the conviction and that flows from the presumption which has to be raised under section 7 of the Bombay Act which states: "When any instrument of gaming has been seized in any house, room of place entered under section 6 or about the person of any one found therein, and in the case of any other thing so seized if the court is satisfied that the Police Officer who entered such house, room or place had reason able grounds for suspecting that the thing so seized was an instrument of gaming, the seizure of such instrument or thing shall be evidence, until the contrary is proved, that such house, room or place is used as a common gaming house and the persons found therein were then present for the purpose of gaming, although no ' gaming was actually seen by the Magistrate or the Police Officer or by any person acting under the authority of either of them: Provided that the aforesaid presumption shall be made, notwithstanding any defect in the warrant or order in pursuance of which the house, room or place was entered under section 6.