Article 60 of CoI : Article 60: Oath or affirmation by the President.

Explanation using Example

Example 1:

Scenario: The newly elected President of India, Mr. Rajesh Kumar, is about to assume office.

Application of Article 60: Before Mr. Rajesh Kumar can officially start his duties as the President of India, he must take an oath or make an affirmation. This ceremony is conducted in the presence of the Chief Justice of India. During the ceremony, Mr. Kumar will say:

"I, Rajesh Kumar, do solemnly affirm that I will faithfully execute the office of President of India and will to the best of my ability preserve, protect and defend the Constitution and the law and that I will devote myself to the service and well-being of the people of India."

Only after this oath or affirmation is made and subscribed, Mr. Kumar can officially begin his term as the President.

Example 2:

Scenario: The current President of India is temporarily unable to perform his duties due to health reasons, and the Vice-President, Ms. Anjali Sharma, needs to act as the President.

Application of Article 60: Before Ms. Anjali Sharma can start performing the duties of the President, she must take an oath or make an affirmation. If the Chief Justice of India is unavailable, the senior-most Judge of the Supreme Court will oversee the ceremony. Ms. Sharma will say:

"I, Anjali Sharma, do solemnly affirm that I will discharge the functions of the President of India and will to the best of my ability preserve, protect and defend the Constitution and the law and that I will devote myself to the service and well-being of the people of India."

After this oath or affirmation, Ms. Sharma can officially act as the President until the current President is able to resume his duties.