There are several judicial pronouncements that you should focus on for the UPSC Law Optional subject. These judicial pronouncements have had significant impact on the development of law in India and are important for understanding and analyzing legal concepts. Here are some key judicial pronouncements that you should pay attention to:

1. Kesavananda Bharati v. State of Kerala (1973):
- This landmark case resulted in the formulation of the basic structure doctrine, which holds that there are certain fundamental features of the Constitution that cannot be amended by the Parliament.
- The Supreme Court in this case held that the power of amendment under Article 368 is not unlimited and the Parliament cannot alter the basic structure of the Constitution.

2. Maneka Gandhi v. Union of India (1978):
- In this case, the Supreme Court expanded the scope of the right to life and personal liberty under Article 21 of the Constitution.
- The court held that the right to life includes the right to live with dignity and the right to travel abroad.

3. Golak Nath v. State of Punjab (1967):
- This case marked a significant turning point in the interpretation of the power of amendment under Article 368.
- The Supreme Court held that the Parliament cannot amend any of the fundamental rights enumerated in Part III of the Constitution.

4. Minerva Mills Ltd. v. Union of India (1980):
- This case dealt with the issue of the validity of the 42nd Amendment Act, which had amended several provisions of the Constitution.
- The Supreme Court struck down certain provisions of the amendment, reaffirming the basic structure doctrine and the primacy of fundamental rights.

5. Vishakha v. State of Rajasthan (1997):
- This case dealt with the issue of sexual harassment at the workplace and led to the formulation of guidelines to prevent and redress such harassment.
- The Supreme Court recognized that sexual harassment is a violation of the fundamental rights of women under Articles 14, 19, and 21.

These judicial pronouncements have had a profound impact on the interpretation and application of law in India. They have shaped the legal landscape and have been instrumental in safeguarding fundamental rights and upholding the principles of justice and equality.