Calling India "secular" in the Constitution is like calling water wet.
Even before 1976, our Constitution was already secular in substance.
Article 14: Equality before law
Article 25 to 28: Freedom of religion
Article 29 and 30: Protection of minority rights
And no state religion
The word "Secular" is a Western import born of Europe's church-state conflicts. Does not capture India’s historical approach to religious pluralism which is better described by concepts like Sarva Dharma Sambhava or equal respect for all faiths.
Long before modern secularism, India spoke of Vasudhaiva Kutumbakam. It is inclusive by design. Has nurtured multiple worldviews and philosophical traditions while affirming the dignity of every path
Adding "secular" to the Preamble was, philosophically, a tautology. It is resorting to something lesser than what one has always been and stood for! It obscures rather than clarifies India’s own philosophical understanding of pluralism!!
Shall explain elaborately in an article!