(b) Fundamental duties of Indian citizens are provided by 42 nd amendment. Hence, option (b) is the correct answer. The Fundamental Duties were added to the Constitution by the 42 nd Amendment in 1976, upon the recommendations of the Swaran Singh Committee. By the 42nd Constitution (Amendment) Act, 1976, a new Chapter IV-A containing Article 51-A was added to the Constitution. The Amendment added ten Fundamental Duties and the 11th fundamental duty was added by the 86th Constitutional Amendment.