How can one ensure that they uphold the constitution and laws as per the statement?
One can ensure that they uphold the constitution and laws as per the statement by:

1. Solemnly affirming their 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 favor, affection or ill-will.
4. Upholding the constitution and the laws faithfully and to the best of their ability, knowledge, and judgment.