(1) Physicochemical aspects of water, water quality and standard
(2) Technology options for treatment, reuse and recycling of water and wastewater
(3) Watershed development with rational utilization of surface water and groundwater
(4) Surface water and soil moisture conservation, rainwater harvesting and recharging
(5) Open channel flow
(6) Sedimentation transport mechanism and Reservoir siltation
(7) Fluvial and environmental hydraulics
(8) Impact of climate change on water resources
(9) Wetland conservation, bioremediation, limnology and management strategies of lakes
(10) Impact of forestry on stream flow and water quality
(11) Groundwater pollution, contamination, recharge, and potential
(12) Water crisis
(13) Ecologically balanced wastewater management
(14) Recent techniques in irrigation water management
(15) Advanced nature based treatment
(16) Plumbing Hydraulics
(17) Forest Hydrology
(18) Environmental sustainability, etc.