The Supreme Court of India is the highest judicial forum and final court of appeal under the Constitution of India, the highest constitutional court, with the power of constitutional review. It comprises the Chief Justice of India and 30 other judges. It has original, appellate and advisory jurisdictions. As the final court of appeal of the country, it takes up appeals primarily against verdicts of the High Courts of various States of the Union and other courts and tribunals. The law declared by the Supreme Court becomes binding on all courts within India.