The major environmental concerns in India that require immediate attention and redressal include: 1. Air pollution: India has some of the most polluted cities in the world, leading to respiratory and other health issues. 2. Water pollution: Rivers, lakes, and groundwater sources are heavily contaminated due to industrial waste, sewage, and agricultural run-off. 3. Deforestation: Rapid urbanization and industrialization are leading to widespread deforestation, endangering biodiversity and disrupting ecosystems. 4. Waste management: Inadequate waste disposal systems and improper waste management practices contribute to pollution and health hazards. 5. Climate change: Increasing greenhouse gas emissions and industrial activity contribute to climate change, leading to extreme weather events and agricultural disruptions. 6. Loss of biodiversity: Habitat destruction, pollution, and illegal wildlife trade pose a significant threat to India's rich biodiversity. Addressing these issues requires strong policy implementation, efficient waste management systems, adoption of renewable energy sources, promoting afforestation, and strict enforcement of environmental laws and regulations.