The Allahabad High Court is one of India's oldest and most prestigious high courts, established on March 17, 1866, under the Indian High Courts Act of 1861. Initially set up to serve the North-Western Provinces, it has grown to have jurisdiction over the entire state of Uttar Pradesh, making it one of the largest and most influential high courts in the country.

The court initially began with a Chief Justice and a few puisne judges, and it has expanded over the years to accommodate the increasing volume of cases from the populous state. The Allahabad High Court holds extensive powers of original, appellate, and revisional jurisdiction, hearing civil, criminal, and constitutional matters. It also serves as the appellate court for cases decided by lower courts in Uttar Pradesh and has the authority to interpret the Constitution of India, similar to the Supreme Court.

The court's decisions are binding on all subordinate courts within its jurisdiction, and it has played a significant role in shaping the legal framework of the country through its landmark judgments. The Allahabad High Court is known for its significant contributions to Indian jurisprudence, particularly in the areas of civil rights, criminal law, and constitutional law. It operates under the leadership of the Chief Justice, who is appointed by the President of India, and has the responsibility of maintaining the rule of law within the state of Uttar Pradesh.