In the case of Mohini Jain v. State of Karnataka (1992), the Supreme Court of India included the "right to education" under the "right to life." In this case, Mohini Jain, a student who was denied admission to a medical college due to her inability to pay the exorbitant fees, filed a petition challenging the denial of her right to education.

The Supreme Court, in its judgment, held that the right to education is a fundamental right implicit in the right to life under Article 21 of the Indian Constitution. The court observed that education is essential for the realization of one`s full potential and for the development of an individual`s personality. Denying access to education based on financial constraints infringes upon the right to life.

This landmark judgment recognized the importance of education as a fundamental right and emphasized that the state has an obligation to provide equal educational opportunities to all its citizens. It also laid the foundation for subsequent legal developments and policy changes aimed at ensuring universal access to education in India.

Therefore, option 3, Mohini Jain v. State of Karnataka (1992), is the correct answer as it is the case where the Supreme Court of India declared the right to education as part of the right to life.