According to the text, what are the principles an office holder should adhere to in performing his duties?
The principles an office holder should adhere to in performing his duties are:

1. Solemnly affirming true faith and allegiance to the Constitution of India as by law established.
2. Upholding the sovereignty and integrity of India.
3. Performing the duties of their office without fear or favour, affection or ill-will.
4. Upholding the Constitution and the laws.