How does the power to issue certain writs help the Supreme Court more effectively exercise its jurisdiction as per Article 139 and Article 140?
The power to issue certain writs, as mentioned in Article 139, allows the Supreme Court to enforce fundamental rights and ensure justice. This includes issuing writs such as habeas corpus, mandamus, prohibition, quo warranto and certiorari for purposes other than those specified in clause (2) of article 32. These powers enable the Supreme Court to effectively exercise its jurisdiction by directing authorities to take certain actions or prevent them from taking specific actions as per legal requirements.

In addition, Article 140 empowers Parliament to make laws providing supplemental powers to the Supreme Court that are not inconsistent with the provisions of the Constitution. These additional powers can be used by the Supreme Court to more effectively exercise its jurisdiction in cases where it deems it necessary for the ends of justice. This could include transferring cases, appeals or other proceedings from one High Court to another, as well as exercising other ancillary powers that may arise during the course of a case or appeal.

Together, these powers enable the Supreme Court to effectively enforce fundamental rights and ensure justice in a more comprehensive manner.