Biomining has emerged as a pivotal strategy for addressing the legacy waste crisis in India, particularly in Uttar Pradesh-one of the nation’s most populous and urbanizing states. This study critically examines biomining initiatives in three key cities-Meerut, Prayagraj, and Gorakhpur-to assess the efficacy of waste reclamation, material recovery, and land restoration practices. These cities have adopted diverse approaches combining biomining, waste-to-energy conversion, and circular economy models to remediate decades-old dumpsites, mitigate environmental hazards, and reclaim urban land for sustainable reuse. This paper identifies core operational challenges including waste quantification errors, monsoonal disruptions, transportation bottlenecks, and gaps in regulatory oversight. At the same time, it highlights best practices such as layered screening techniques, public–private partnerships, and integration with extended producer responsibility (EPR) mechanisms and refuse-derived fuel (RDF) utilization. Furthermore, the study explores urban afforestation and the application of green credit frameworks as innovative financing tools aligned with national climate goals. By synthesizing on-ground experiences with policy insights, the findings offer a scalable blueprint for integrating biomining into India’s broader waste governance and climate resilience agenda.