1. Research Scholar, Dept. of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India.
2. Associate Professor, Dept. of Civil Engineering, Indian Institute of Technology Kanpur, 208016, India (corresponding author).
3. Professor, Institute for Water and River Basin Management, Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, Karlsruhe 76128, Germany.