The case relating to the abrogation of Article 370 of the Indian Constitution was decided by a 9-judge Constitution Bench of the Supreme Court of India. This case was one of the most significant constitutional matters in recent history, dealing with the special status of Jammu and Kashmir and the constitutional validity of the government's decision to revoke that status.
The central question before the court was whether the procedure followed to abrogate Article 370 was constitutionally valid. The case also examined the scope of Parliament’s power under Article 370(3) and whether the changes made to the status of Jammu and Kashmir conformed to the constitutional and legal framework.
Given the constitutional complexity and the long-term implications for federalism, autonomy, and the structure of the Indian Union, the matter was referred to a larger bench. A 9-judge bench is among the highest strength benches the Supreme Court can constitute and reflects the importance of the case.
Conclusion:
The correct answer is 9, indicating that a 9-judge bench of the Supreme Court was constituted to decide on the constitutional issues relating to the abrogation of Article 370.