1. Department of Organic Chemistry, Dr. B.R. Ambedkar University, Srikakulam, Etcherla, Andhra Pradesh, India
2. Department of Chemistry, Jawaharlal Nehru Technological University Kakinada, Kakinada, Andhra Pradesh, India
3. Department of Chemistry, GIT, GITAM University, Visakhapatnam, Andhra Pradesh, India
4. Department of Organic Chemistry & FDW, Andhra University, Visakhapatnam, Andhra Pradesh, India