The high courts of India are the highest courts of appellate jurisdiction in each state and union territory of India. However, a high court exercises its original civil and criminal jurisdiction only if the subordinate courts are not authorized by law to try such matters for lack of peculiar or territorial jurisdiction. High courts may also enjoy original jurisdiction in certain matters, if so designated especially by the constitution a state law or union law. The work of most high courts primarily consists of appeals from lower courts and writ petitions in terms of Articles 226 and 227 of the Constitution. Writ jurisdiction is also the original jurisdiction of a high court. Each state is divided into judicial districts presided over by a district judge and a session judge. He is known as the district judge when he presides over a civil case and the sessions judge when he presides over a criminal case. He is the highest judicial authority below a high court judge. Below him, there are courts of civil jurisdiction, known by different names in different states. Under Article 141 of the constitution, all courts in India, including high courts are bound by the judgements and orders of the Supreme Court of India by precedence. A shows the seat, year of establishment, and territorial jurisdiction of the High Courts. Judges in a high court are appointed by the president of India in consultation with the chief justice of India and the governor of the state under Article 217 Chapter Five of Part of the Constitution, but through subsequent judicial interpretations, the primacy of the appointment process is on the hands of the Judicial Collegium. High courts are headed by a chief justice. The chief justices rank fourteenth (within their respective states) and seventeenth outside their respective states on the Indian order of precedence. The number of judges in a court is decided by dividing the average institution of main cases during the last five years by the national average, or the average rate of disposal of main cases per judge per year in that high court, whichever is higher.