Which one of the following is not enumerated in the Constitution of India as a fundamental duty of citizens of India ?

The Fundamental Duties of Indian citizens are enumerated in Article 51A of the Constitution, added by the 42nd Amendment Act, 1976 [3]. The list includes safeguarding public property and abjuring violence [3], protecting and improving the natural environment including forests and wildlife [2], and developing the scientific temper, humanism, and the spirit of inquiry [3]. However, 'to promote international peace and security' is not a Fundamental Duty. Instead, it is a Directive Principle of State Policy (DPSP) under Article 51, which mandates the State to strive for international peace [2]. While Fundamental Duties are moral obligations for citizens to foster patriotism and unity, the promotion of international peace is specifically categorized as a duty of the State rather than an individual citizen's constitutional duty [2].

Sources

1. [1] Introduction to the Constitution of India, D. D. Basu (26th ed.). > Chapter 8: FUNDAMENTAL RIGHTS AND FUNDAMENTAL DUTIES > Fundamental Duties. > p. 161
2. [3] https://dsel.education.gov.in/sites/default/files/Fundamental-Duties-English.pdf
3. [2] Indian Polity, M. Laxmikanth(7th ed.) > Chapter 10: Fundamental Duties > Fundamental Duties > p. 119