In India's rapidly evolving industrial landscape, a transformative shift towards zero-waste manufacturing is underway. "Waste Not, Want Not: The Advent of Zero-Waste Manufacturing Processes" explores how Indian industries are pioneering methods to eliminate waste entirely from production cycles, merging economic efficiency with environmental responsibility. The article delves into the challenges posed by industrial waste and highlights the principles of zero-waste manufacturing, emphasizing a move from traditional linear models to sustainable circular economies. Real-life case studies of companies like Tata Motors and ITC Limited demonstrate successful implementation of closed-loop systems, lean manufacturing, and innovative recycling techniques. These practices offer significant benefits: environmental advantages through resource conservation and pollution reduction; economic gains via cost savings and new revenue streams; and social impacts like enhanced corporate responsibility and consumer trust. Despite challenges such as initial investment costs and technological limitations, the push towards zero-waste manufacturing is essential for India's sustainable future. By embracing emerging technologies and fostering a culture of sustainability, Indian industries are not just mitigating environmental footprints but also positioning themselves as global leaders in sustainable practices.