" At page 236, the learned Judge concludes: " So far as the past acts are concerned the law exists, notwithstanding that it does not exist with respect to the future exercise of fundamental rights." Mahajan, J., as he then was, who delivered a separate judgment, put the same view in different phraseology at page 251 : " The effect of Article 13(1) is only prospective and it operates in respect to the freedoms which are infringed by the State subsequent to the coming into force of the Constitution but the past acts of a person which came within the mischief of the law then in force are Dot affected by Part III of the Constitution." The learned Judge, when American law was pressed on him in support of the contention that even the pre Constitution law was void, observed thus, at page 256 : " It is obvious that if a statute has been enacted and is repugnant to the Constitution, the statute is void since its very birth and anything done under it is also void and illegal.