They, therefore, contended that section 5(1) of the Act was discriminatory and violative of article 14 of the Constitution and asked for the issue of a writ of 1253 certiorari or any other appropriate writ, direction or order quashing the report of the Income tax Investigation Commission dated the 29th August 1952 enclosed as Annexure A to the petition and the assessment orders of the Income tax Officer for the years 1940 41, 1941 42, and 1943 44 to 1948 49 as being unconstitutional, null and void and also of a writ of prohibition calling upon the Commissioner of Income tax, Madras, respondent 1 and the Income tax Officer, City Circle 1, Madras, respondent 2 or their subordinate officers to forbear from implementing the findings of the Investigation Commission with regard to the year 1942 43.