Here's why:
* Collective Ownership: This sentiment was shared by numerous freedom fighters, leaders, and revolutionaries. Many individuals spoke about the inherent right to freedom and self-determination, making it a collective expression of the movement's core belief.
* Inspired by Enlightenment Ideals: The idea of "birthright" is deeply rooted in Enlightenment thought, which emphasized individual liberty and natural rights. This philosophy influenced many Indian leaders and thinkers.
* Popularized by Mahatma Gandhi: Mahatma Gandhi, a key figure in the independence movement, popularized the concept of "Swaraj" (self-rule) and emphasized the importance of non-violent resistance. While he didn't explicitly use the exact phrase, his ideas and actions promoted the notion of freedom as a fundamental right.
Therefore, it's more accurate to say the idea of "Azadi hamara janm sidh adhikar hai" was a collective sentiment and a powerful articulation of the spirit of the Indian Independence Movement, rather than being solely attributed to one individual.