1. Assistant Professor, Department of Mathematics, S. A. Jain College, Ambala City, Haryana, India.
2. Post-Doc, Harish-Chandra Research Institute, Allahabad, India.
3. Ph.D., Department of Mathematics, Indian Institute of Technology, Delhi, India.
4. M.Phill., Sri Venkateswara University, Tirupati, India.
5. M.Sc., Kurukshetra University, Kurukshetra, India.