1. Department of Mathematics, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, Coimbatore, India
2. Department of Mathematics, Providence College for Women, Coonoor, India
3. Department of Mechanical Engineering, Islamic Azad University, Aiabad, Katoul Branch, Iran
4. Department of Mechanical Engineering, Institute of Technical Education and Research, Siksha ‘O’ Anusandhan Deemed to be University, Bhubaneswar, India