The High Court in Allahabad was conceived on 18.06.1866 under the Royal Charter of Her Majesty Queen Victoria i.e. The Letters Patent of 17.3.1866. It procured its present status under the United Provinces High Courts (Amalgamation Order) 1948 upheld w.e.f 19.07.1948. The High Courts Act, 1861, ordered by British Parliament, accommodated the substitution of Supreme Courts of Calcutta, Madras, and Bombay and for the foundation of High Courts in their places. It likewise accommodated the foundation of High Courts in some other piece of Her Majesty’s regions, excluded in the purview of another High Court by Letters Patent.
The High Court in Allahabad was set up by the Letters Patent of 17.03.1866 for the North Western Province supplanting the old “Sudder Diwani Adalat” of Agra, which arrived at an end on 13.06.1866. The principal Chief Justice and the Judges of the High Court of North-Western Provinces at Allahabad were named in the above Letters Patent itself. For a long time, amid 1866 to 1869 the High Court in this manner framed, kept on working at Agra and it was not before the pre-winter of 1869 when the Chief Justice first sat at Allahabad.