1. Department of Mathematics, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
2. Department of Chemistry, College of Science, King Khalid University, Abha, Saudi Arabia
3. Department of Mechanical Engineering, University Centre for Research & Development, Chandigarh University, Mohali, Punjab, India
4. Department of Studies and Research in Mathematics, Davangere University, Davangere, Karnataka, India