Dr. Sikder is basically an Environmental Health researcher. With Ph.D., M.Sc. and B.Sc. degrees in the field of Environmental Science, he has a full understanding of and capability in research conduction on natural science, public health issues, and environmental medicine. He is also known for the implementation of research outputs to real-scale scenarios. He has contributed to the formation of a sustainability resilient society by linking his research outputs to people with a severe water pollution problem and to people struggling with poor health. He is also contributing as a lead researcher to address COVID-19.