How many fundamental duties are in the Indian Constitution?

The Indian Constitution enumerates eleven Fundamental Duties for its citizens. These duties were added to the Constitution by the 42nd Amendment Act in 1976, initially listing ten duties, and a subsequent 86th Amendment in 2002 added the eleventh duty.

The Fundamental Duties listed in Article 51A of the Constitution are:

To abide by the Constitution and respect its ideals and institutions, the National Flag and the National Anthem.
To cherish and follow the noble ideals that inspired the national struggle for freedom.
To uphold and protect the sovereignty, unity, and integrity of India.
To defend the country and render national service when called upon to do so.
To promote harmony and the spirit of common brotherhood amongst all the people of India, transcending religious, linguistic, and regional or sectional diversities; to renounce practices derogatory to the dignity of women.
To value and preserve the rich heritage of the country’s composite culture.
To protect and improve the natural environment including forests, lakes, rivers, and wildlife, and to have compassion for living creatures.
To develop the scientific temper, humanism, and the spirit of inquiry and reform.
To safeguard public property and to abjure violence.
To strive towards excellence in all spheres of individual and collective activity so that the nation constantly rises to higher levels of endeavor and achievement.
To provide opportunities for education to children between the ages of six and fourteen years and to ensure that parents or guardians ensure that their child or ward is provided opportunities for education.
These duties aim to promote a sense of responsibility and patriotism among Indian citizens.