N. B. Singh is an emeritus professor at the Department of Chemistry and Biochemistry and is associated with the Research and Development Cell of Sharda University, Greater Noida, India. Formerly he was the head of the Chemistry Department and dean of the Faculty of Science of Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur, India. He owns three patents and his areas of research are solid-state chemistry, materials science, cement chemistry, thermodynamics, and water purification.

Dev Kumar Mahato is an associate professor and head of the Department of Physics and Department of Materials Science and Engineering, National Institute of Technology, Patna, India. He was awarded the Indian Academy of Science fellowship in 2014 and the ISCAS Smt. Mayadevi Juneja Endowment Medal in 2018. His areas of research are solid-state chemistry, materials science, cement chemistry, thermodynamics, and water purification, with a focus on multifunctional bulk and nanoceramic materials for device applications.