Administration of justice, means the right with a political community by means of the physical force of the State; the State's application of the sanction of force to the rule of right, Black Law Dictionary, 7th Edn., p. 45.
Administration of justice has a wide meaning and includes administration of civil as well as criminal justice. The expression 'administration of justice' is wide enough to include the 'powers and jurisdiction of all the courts including the High Courts except the Supreme Court, Jamshed N. Guzdar'v. State of Maharashtra, (2005) 2 SCC 591. [Constitution of India, List 111, Entry 11A, Schedule 7]
The word 'Administration of Justice in List 111, Entry 11-A in 7th Schedule of Constitution only shows that, the Topic ' Administration of Justice can be legislated on both by Union as well as the State legislatures, Union of India v. Cadell Weaving Mills Co. (P) Ltd., (2005) 2 SCC 590.
--the expression 'administration of justice' has wide amplitude covering conferment of general jurisdiction on all courts including High Court except the Supreme Court under entry 11A of list III, Jamshed N. Guzdar v. State of Maharashtra, (2005) 2 SCC 591 (629). (Constitution of India, Sch. VII, List III, Entry 11-A)
--the expression 'administration of justice' may be an expression of wide import and may ordinarily, and in the absence of anything indicating any contrary intention, cover and include within its ambit several things as component parts of it, namely, the constitution and organisation of Courts, Jurisdiction and powers of the Courts and the laws to be administered by the Court, State of Bombay v. Narottamdas Jethabhai, AIR 1951 SC 64 (95): 1951 SCR 51. (Constitution of India, Sch. VII, List II. Entry 3)