1. Water is life: Implications of multi-pollutants around the globe 2. Subsurface pollution by geogenic, industrial, and emerging pollutants 3. Soil contamination: efficacy of fertilizer, sawdust and horse manure application as a treatment technique for oil-polluted soil in the tropics 4. Groundwater pollution and Climate change: Advances in interlinking tools 5. Advances in modeling and laboratory analysis for multi-phase flow in porous media 6. Large scale (2D/3D) laboratory experiments and numerical modeling to assist PAHs behaviours in the subsurface 7. Heavy metals and metalloids in subsurface environment: environmental and health hazards and bioremediation strategies 8. Flow and movement of gaseous pollutants in the subsurface: CO2 and CH4 dynamics at a CCS site 9. Density driven flow, saline water intrusion- Consequences and Current status 10. Fate of selenium and naturally occurring materials in soil and groundwater: role of isotopic techniques in assessment and remediation 11. Impacts of climatic variability on subsurface water resources and nitrate-N movement 12. Advancement in groundwater quality modeling: Conceptual and Computational models 13. Simulation-Optimization Approaches in remediation system design 14. Estimation of groundwater recharge and its impacts on groundwater quality 15. Evaluation of Machine Learning-Based modeling approaches in groundwater quantity and quality prediction 16. Remote sensing and GIS application in contaminant mapping and prediction 17. Uncertainty in groundwater quality modeling: Causes and impacts 18. A comparative study of Artificial Neural Network and Genetic Algorithm Model for the prediction of Fluoride in the Groundwater: A case study of Rajasthan, India 19. Assessing the risks of interaction between the natural water table and on-site wastewater treatment systems 20. Soil erosion risk assessment over an agricultural watershed 21. Managed aquifer recharge structures for fluoride remediation in India 22. Column Adsorption Studies for the Removal of Chemical Oxygen Demand from Fish Pond Wastewater using Waste Alum Sludge 23. Micro-plastic in the subsurface: extraction and characterization from sediments of River Ganga near Patna, Bihar 24. Development in microbial techniques for management and remediation of PPCPs polluted sites 25. Riverbank infiltrations- sustainable tool for rural faecal contaminations 26. Economical risk analysis for Management and Remediation of polluted sites 27. Evaluation of health risk analysis for industrial pollutants 28. Understanding the Hydrogeology of Polluted Sites 29. Groundwater Policy- What need to modify? 30. Applicability, Implications and Development for Treatment of Polluted Groundwater