Dr. Rahul Kumar is an Assistant Professor of Zoology at Chaudhary Charan Singh Haryana Agricultural University, College of Agriculture, Bawal, Rewari. He earned his postgraduate degree and doctorate from the Department of Zoology at CCS Haryana Agricultural University, Hisar, and has also served as a Senior Research Fellow at Lala Lajpat Rai University of Veterinary and Animal Sciences. His academic experience includes teaching and research appointments at agricultural and degree colleges in Haryana. Dr. Kumar has published research papers, book chapters with international publishers, and popular science articles, and has delivered invited and keynote talks at international conferences. He serves as a reviewer and editorial board member for several international scientific journals and is actively involved in professional scientific societies.Prof. R.K. Gupta is a Professor of Zoology and currently serves as Head of the Department of Zoology and Aquaculture at CCS Haryana Agricultural University. He completed his academic training at Kurukshetra University and CCS Haryana Agricultural University. His research focuses on fisheries sustainability, conservation strategies, water management, and fish pathology. He has led nationally funded research projects, supervised postgraduate and doctoral research, and serves as a reviewer for several scientific journals. Dr. Gupta has authored scholarly publications and books, actively contributes to professional scientific societies, and is engaged in outreach and training programmes for farmers and government officers.

• Introduction of South Asian Deltaic Regions.- Overview of South Asian Deltaic Landscapes Role of deltas as dynamic, multivalent and unstable systems of ecological, hydrological and livelihood centers.- Biodiversity Wildlife Hotspots of South Asian Deltas.- Multiscale perspectives on Ecological Hotspots.- Deltas as Hotspot Mosaics of Biodiversity Wildlife Ecotonal.- Biological richness confluence of terrestrial, freshwater and marine deltaic ecosystem.

Dr. Rahul Kumar is an Assistant Professor of Zoology at Chaudhary Charan Singh Haryana Agricultural University, College of Agriculture, Bawal, Rewari. He earned his postgraduate degree and doctorate from the Department of Zoology at CCS Haryana Agricultural University, Hisar, and has also served as a Senior Research Fellow at Lala Lajpat Rai University of Veterinary and Animal Sciences. His academic experience includes teaching and research appointments at agricultural and degree colleges in Haryana. Dr. Kumar has published research papers, book chapters with international publishers, and popular science articles, and has delivered invited and keynote talks at international conferences. He serves as a reviewer and editorial board member for several international scientific journals and is actively involved in professional scientific societies.Prof. R.K. Gupta is a Professor of Zoology and currently serves as Head of the Department of Zoology and Aquaculture at CCS Haryana Agricultural University. He completed his academic training at Kurukshetra University and CCS Haryana Agricultural University. His research focuses on fisheries sustainability, conservation strategies, water management, and fish pathology. He has led nationally funded research projects, supervised postgraduate and doctoral research, and serves as a reviewer for several scientific journals. Dr. Gupta has authored scholarly publications and books, actively contributes to professional scientific societies, and is engaged in outreach and training programmes for farmers and government officers.

• Introduction of South Asian Deltaic Regions.- Overview of South Asian Deltaic Landscapes Role of deltas as dynamic, multivalent and unstable systems of ecological, hydrological and livelihood centers.- Biodiversity Wildlife Hotspots of South Asian Deltas.- Multiscale perspectives on Ecological Hotspots.- Deltas as Hotspot Mosaics of Biodiversity Wildlife Ecotonal.- Biological richness confluence of terrestrial, freshwater and marine deltaic ecosystem.

Dr. Rahul Kumar is an Assistant Professor of Zoology at Chaudhary Charan Singh Haryana Agricultural University, College of Agriculture, Bawal, Rewari. He earned his postgraduate degree and doctorate from the Department of Zoology at CCS Haryana Agricultural University, Hisar, and has also served as a Senior Research Fellow at Lala Lajpat Rai University of Veterinary and Animal Sciences. His academic experience includes teaching and research appointments at agricultural and degree colleges in Haryana. Dr. Kumar has published research papers, book chapters with international publishers, and popular science articles, and has delivered invited and keynote talks at international conferences. He serves as a reviewer and editorial board member for several international scientific journals and is actively involved in professional scientific societies.Prof. R.K. Gupta is a Professor of Zoology and currently serves as Head of the Department of Zoology and Aquaculture at CCS Haryana Agricultural University. He completed his academic training at Kurukshetra University and CCS Haryana Agricultural University. His research focuses on fisheries sustainability, conservation strategies, water management, and fish pathology. He has led nationally funded research projects, supervised postgraduate and doctoral research, and serves as a reviewer for several scientific journals. Dr. Gupta has authored scholarly publications and books, actively contributes to professional scientific societies, and is engaged in outreach and training programmes for farmers and government officers.

• Introduction of South Asian Deltaic Regions.- Overview of South Asian Deltaic Landscapes Role of deltas as dynamic, multivalent and unstable systems of ecological, hydrological and livelihood centers.- Biodiversity Wildlife Hotspots of South Asian Deltas.- Multiscale perspectives on Ecological Hotspots.- Deltas as Hotspot Mosaics of Biodiversity Wildlife Ecotonal.- Biological richness confluence of terrestrial, freshwater and marine deltaic ecosystem.