( 1 ) THE appellant was a Deputy Controller under the Ministry of Mines and Fuel, Government of India. He is being tried in a criminal case being Case No. 2 of 1964 of the Additional Special Court, Calcutta on charges under S. 5 (2) of the Prevention of Corruption Act and S. 120b read with Ss. 161 and 165 of the Indian Penal Code. The Additional Special Court in which the appellant is having his trial has been constituted under S. 2 of the West Bengal Criminal Law Amendment (Special Courts) Act, 1949, hereinafter referred to as the Act. From time to time, the Presiding Officer of that Court was appointed. By a notification No. 117-J dated January 7, 1974, the Government of West Bengal appointed Shri H. Kar as a Judge of the Additional Special Court, Calcutta under sub-s. (2) of S. 2 read with sub-s. (1) of S. 9 of the Act.

( 2 ) THE appellant moved a writ petition challenging the constitutional validity of sub-s. (2) of S. 2 of the Act under which the said Shri H. Kar was appointed. A Rule Nisi was issued on that petition. It was contended on behalf of the appellant that sub-s. (2) of S. 2 was ultra vires the provision of Article 233 (1) of the Constitution of I