1. Department of Chemistry, GITAM School of Science, GITAM (Deemed to be University), Vishakapatnam, Andhra Pradesh, India
2. Department of Chemistry, Gayatri Vidya Parishad College for U. G and P. G Courses, Visakhapatnam, Andhra Pradesh, India
3. Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha, Saudi Arabia