Shelat, J. The petitioner was arrested by an order dated December 10, 1965 under Rule 30\l)(b) of the Defence of India Rules, 1962 and was detained in Central Jail, Tebar, New Delhi. On the 24th December, 1965, he filed writ petition No. 47 of 1966 in this Court challenging his detention, inter a/ia; on the grounds that (1) Rule 30(I)(b) was ultra vires s. 3(2)(15)(i) of the Defence of India Act, (2) that rule 23 of the Defence of India (Delhi Detenues) Rules, 1964 gave him a right to .make a representation by providing review of the said detention order and that his said right was disregarded by his having been preF vented from making such representation, ( 3) that the said order was in breach of s. 44 of the Act, and ( 4) that it was made in ma/a fide exercise of power. That petition was dismissed on April 19, 1966. The petitioner was thereafter served with an order dated June 11, 1966 passed by the Central Government under Rule 30A(9) of the said Rules. The said order, inter alia, stated G that "the said detention order has been reviewed by the Central Government-and upon such review the Central Government hereby decides that Shri P. L. Lakhanpal-should continue to be detained .wih. a view to preventing hi from acting in any manner pre-1ud1c1al to the Defence of India and Civil Defence". The ptiioner filed ~rit .Petition No. 137 of 1966 challenging . II the validity of the said angina! order of detention and the order dated June II, 1966. Rule 30A(9) provides as follows:-