1. Research Scholar, Dept. of Hydrology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India. ORCID: .
2. Postdoctoral Fellow, Rural Water Supply, Cranfield Univ., Bedford MK43 0AL, UK. ORCID: .
3. Associate Professor, Dept. of Hydrology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India (corresponding author).