Explanation:

Part IVA of the Indian Constitution deals with Fundamental Duties. As of now, there are 11 Fundamental duties.
Originally, the Constitution of India did not contain these duties. Fundamental duties were added by 42nd and 86th Constitutional Amendment acts.
Citizens are morally obligated by the Constitution to perform these duties. However, like the Directive Principles, these are non-justifiable, without any legal sanction in case of their violation or non-compliance.