And the comical point is that Secularism was already a part of both constitution and preamble.Addition of secularism was only done for minority appeasment.
Here, Unedited preamble
The clause which guarantees Liberty of thought, expression, belief ,
faith or worship already guaranteed secularism and Individualistic freedom of religion.
Secularism was unnecessary and was brought forth as a measure of appeasement.
See @
Saradiel what is wrong with secularism in India. If it meant what it's lexigraphical meaning meant, secularism would never become an issue.