[1] Department of Mathematics, Bajkul Milani Mahavidyalaya, Bajkul, West Bengal, India
[2] Department of Electricity and Electronics, Institute of Research and Development of Processes, University of the Basque Country, Campus of Leioa, Spain
[3] School of Mathematics, Thapar Institute of Engineering and Technology, Deemed to Be University, Punjab, Patiala, India