1. Department of Information Technology, Kumaun University, S. S. J. Campus, Almora, Uttarakhand 263601, India
2. Department of Statistics, Kumaun University, S. S. J. Campus, Almora, Uttarakhand 263601, India
3. School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi 110067, India