The correct answer is option 3, which states that freedom of thought and expression in India is guaranteed by the Constitution, subject to the implementation of Directive Principles.

Let`s analyze each option to understand why option 3 is the correct answer.

Option 1: It states that freedom of thought and expression is guaranteed subject to the implementation of Directive Principles and Fundamental Duties. This option is incorrect because while Directive Principles and Fundamental Duties are important aspects of the Constitution, they do not directly impact the guarantee of freedom of thought and expression.

Option 2: It states that freedom of thought and expression is guaranteed subject to the implementation of Fundamental Duties and the Right to Equality. This option is incorrect because while Fundamental Duties and the Right to Equality are also important constitutional provisions, they do not specifically govern the freedom of thought and expression.

Option 3: It correctly states that freedom of thought and expression in India is guaranteed by the Constitution, subject to the implementation of Directive Principles. The Directive Principles of State Policy are a set of guidelines for the government to ensure social and economic justice. While they are not legally enforceable, they play an important role in shaping legislation and policies.

Option 4: It states that freedom of thought and expression is guaranteed subject to the implementation