Ecotourism is often viewed as a means of biodiversity conservation, rural development, and sustainability, but the fast growth of ecotourism in India’s environmentally sensitive areas is causing the rise of solid waste, plastic waste, food waste, wastewater, and transportation pollution. This paper provides an analysis of existing literature on the subject, focusing on the sources, impacts, trends, and management of pollution generated by tourism in India. The results of the analysis demonstrate that the volume of tourist waste is much higher than that of domestic waste per capita because of intensive consumption, peak loads of population, and poor infrastructure. Key issues include untreated sewage release, accumulation of single-use plastics, water resources conflict, vehicle emissions, habitat fragmentation, and wildlife disturbances. If no changes occur, the levels of tourism-driven consumption and pollution will increase rapidly until 2050. The gaps identified in this review include the lack of data about pollution inventory, life cycle assessment, carrying capacity modeling, microplastic presence, geospatial observation, and community engagement. Sustainable development model is suggested based on the following elements: circular economy, decentralized sewage treatment, renewable energy, sustainable mobility, monitoring, carrying capacity, and community engagement. Only when the development in the ecotourism industry of India is disassociated from resource utilization and pollution can it contribute to conservation and development.