Understanding and Managing Invasive Alien Species in India

India faces mounting environmental challenges as globalisation, climate change, and human activities accelerate ecological changes. Invasive alien species (IAS) have emerged as one of the most pressing threats, disrupting ecological balance, threatening native biodiversity, and impacting the livelihoods of communities dependent on natural resources. This document serves as both a guide and a practical toolkit for policymakers, researchers, and stakeholders addressing the IAS challenge. Drawing upon the latest research, case studies, and fieldtested practices, it outlines strategies to mitigate the far-reaching ecological, economic, and social impacts of IAS in India’s terrestrial and freshwater ecosystems. Rooted in national policies and international frameworks, the document not only assesses the severity of the IAS issue but also presents actionable solutions to bridge critical gaps in existing knowledge and management practices. Beyond policy and technical recommendations, this document seeks to foster collaboration among India’s key stakeholders—from research institutions and NGOs to community groups and government agencies. By integrating scientific insights with local wisdom, it aims to empower conservation efforts and promote a more resilient, adaptive, and sustainable approach to IAS management across India’s diverse ecosystems.