(1)In any prosecution for any offence under this Act which requires a culpable mental state on the part of the accused, the Court shall presume the existence of such mental state but it shall be a defence for the accused to prove the fact that he had no such mental state with respect to the act charged as an offence in that prosecution.Explanation. - In this sub-section, "culpable mental state" includes intention, motive or knowledge of a fact, or belief in, or reason to believe, a fact.