Bioremediation: An eco-sustainable Green Technology, it's Aplications and Limitations. Role of Microbes in Management of Solid Wastes. Role of Constructed Wetlands in Treatment of Industrial Wastewaters. Role of Rhizobacteria in Phytoremediation of Metal Contaminated Sites. Uranium Radionuclides Contamination in Environments, its Ecotoxicological Effects, Health Hazards and Bioremediation. Plastic Wastes: Environmental Pollution, Health Hazards and its Management. Pesticides Contamination in Environments, their Toxicological effects and biodegradation and bioremediation mechanisms for environmental safety. Toxic metals contamination in environments, their toxicological effects and bioremediation approaches for environmental cleanup. Dyes contamination in environments, their Ecotoxicological effects and Health Hazards and Biodegradation and Bioremediation Mechanisms for Environmental Cleanup. Bioremediation of Metal Pollutants from Electroplating Industry Wastewater. Organic and Inorganic Pollutants in Industrial Wastes, their Ecotoxicological Effects and Health Hazards and Bioremediation Approaches. Pharmacological Implications of Tannery Wastewater Pollutants and their Bioremediation. Role of Methanotrophic Bacterial Community in Lindane Degradation at Contaminated sites. Microbial Cellulases and their Applications in Pulp and Paper Industry: An Emerging Paradigm. Bioremediation of Non-Aqueous Phase Liquids (NAPLS) Polluted Soil and Water Resources. Strategies for Enhanced Bioremediation of Organo-metallic Pollutants. Role of Nano-structured Manganese Oxides in Remediation of Environmental Pollutants. Biomedical Waste: Environmental Threats and its Management