Abstract: The Delhi Ridge, an extension of the Aravalli Hills, is the last remaining natural forest in the capital and a crucial ecological barrier that shields the Indo-Gangetic Plains from desertification. It plays a vital role in preserving biodiversity, improving air quality, and mitigating the effects of urbanization. However, illegal encroachments, weak policy enforcement, and rapid infrastructural expansion pose severe threats to this vital green lung of Delhi. This G’nY blog features an insightful conversation with Chetan Agarwal. Through this discussion, we explore what makes the Ridge indispensable, the challenges it faces, and the ongoing legal and grassroots efforts to protect it from further degradation.