Satadru Palbag and Prof. Dev Nath Singh Gautam co-author "Harital Vigyan (A Handbook of Analytical Validation of Arsenic Containing Ayurvedic Drug Harital)," a specialized handbook examining the analytical validation of the Ayurvedic drug Harital, which contains arsenic. Prof. Dev Nath Singh Gautam is a Professor and Head in the Department of Rasa Shastra and BK at Banaras Hindu University, holding both a PhD and an MD (Ayurveda), with research interests in Ayurvedic pharmacology, phytochemistry, and detoxification processes.