( 1 ) SRI Iqbal Ahmad, who has filed this petition under Article 226 of the Constitution, was practising as an Advocate in the High Court of Judicature at Allahabad when, in the year 1932 he was appointed as an Additional Judge of the High Court. Later on he was appointed a Puisne judge of the High Court in 1933 and at the time of his appointment he gave an undertaking to the following effect :

"i undertake also that I will not, after retirement assume practice in the High Court to which I am appointed or to which I may be transferred, or in any of the courts subordinate thereto, provided that neither my salary nor right to leave and pension is varied to my disadvantage nor a further cut imposed during my tenure of office. " he remained on the Bench of the Allahabad High Court for a number of years and during that period he was appointed Chief Justice from which post he retired in the year 1946. In the year 1947 he go", himself enrolled an Advocate of the Chief Court in Oudh. on the 26th of July, 1948, while he was on the roll of Advocates of the Chief Court in Oudh the U. P. High Courts (Amalgamation) Order (hereinafter referred to as the Order) came into force and