1. Research Scholar, Dept. of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India.
2. Professor, Dept. of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667, India (corresponding author).
3. Principal Scientist and Head, Irrigation and Drainage Engineering Div., Central Soil Salinity Research Institute, Karnal, Haryana 132001, India.