Indian Polity · Polity

With reference to the Supreme Court and High Courts in India, consider the following statements: I. Both the Supreme Court and the High Courts are constitutionally empowered to punish for contempt of themselves. II. The authority to alter or expand the jurisdiction of High Courts vests exclusively with the Parliament. III. Salaries and allowances of Judges of the High Courts are charged upon the Consolidated Fund of India. IV. The Constitution expressly authorises both the Supreme Court and the High Courts to review their own judgments. Which of the statements given above are correct?