1. Part IV-A of the Constitution of India deals with the duties of the citizens. Article 51A lists 11 fundamental duties in this part.

2. These duties motivate citizens to understand and fulfil their responsibilities towards their country, society and environment.

3. The fundamental duties of citizens were added to the Constitution by the 42nd Amendment in 1976 on the recommendations of the Swarn Singh Committee.

4. The fundamental duties of the citizens of India are as follows-

- Adhere to the Constitution and respect its ideals, institutions, national flag and national anthem.

- Keep in your heart the high ideals that inspired the national movement for independence and follow them.

- Protect India's sovereignty, unity and integrity and keep it intact.

-Defend the country and serve the nation when called upon.

- To create a spirit of harmony and common brotherhood among all the people of India, transcending all forms of discrimination based on religion, language, region or class, and to abandon such practices which are against the dignity of women.

- Understand the importance of the glorious tradition of our composite culture and preserve it.

- Protect and improve the natural environment which includes forests, lakes, rivers and wildlife and have compassion for living beings.

- Develop humanism from the scientific point of view and the spirit of learning and improvement.

- Keep public property safe and stay away from violence.

- Make continuous efforts to move towards excellence in all spheres of individual and collective activities so that the nation can progress and achieve new heights of achievement.

- To provide opportunities for education to our children between the ages of six and fourteen years (Added by the 86th Constitutional Amendment Act, 2002).

The Government of India Act, 1935 was based on the principle of federation and introduced a parliamentary system of government. It provided for the establishment of a federal structure for India, where powers were divided between the central (federal) government and provincial governments. It also introduced the concept of bicameralism at the federal level and established a parliamentary system, laying the foundation for India's governance until it gained independence in 1947.

1. On November 26, 1949, the Constituent Assembly adopted the Indian Constitution. However, it was implemented throughout the country from January 26, 1950.

2. Since 2015, the Government of India has declared 26 November as Constitution Day. The objective of this decision is to promote the importance of the Constitution and educate citizens about their rights and duties.

As of my last update in September 2021, there are 11 fundamental duties of Indian citizens mentioned in the Indian Constitution. These duties were added by the 42nd Amendment Act in 1976. However, it's important to verify with up-to-date legal sources because constitutional amendments can occur, potentially changing the number or content of these duties after my last update.

1. Part 20 of the Indian Constitution deals with the amendment process of the Constitution.

2. Part XX contains only one article i.e. Article 368 which deals with amendment of the Constitution.