1. Visiting Assistant Professor, Discipline of Mathematics, Indian Institute of Technology Indore, Simrol, Indore 453552, India; Associated Faculty Member, Discipline of Civil Engineering, Indian Institute of Technology Indore, Simrol, Indore 453552, India. (corresponding author).
2. Assistant Professor, Dept. of Applied Mathematics, Indian Institute of Technology (ISM), Dhanbad 826004, India.
3. Adjunct Professor, Indian Institute of Engineering Science and Technology Shibpur, Howrah, WB 711103, India.