1. Department of Mathematics, Mepco Schlenk Engineering College, Sivakasi 626005, Tamil Nadu, India
2. Department of Mathematics and Statistics, Manipal University Jaipur, Jaipur 303007, Rajasthan, India
3. Research and Development Wing, Live4Research, Tiruppur 638 106, Tamil Nadu, India
4. Kongu Engineering College, Perundurai, Erode 638060, Tamil Nadu, India
5. Department of Humanities and Management Jigme Namgyel Engineering College, Royal University of Bhutan, Dewathang, Bhutan