1. Research Scholar, Dept. of Hydrology, Indian Institute of Technology, Roorkee-247 667, India.
2. Assistant Professor, AgFE Dept., Indian Institute of Technology, Kharagpur, West Bengal-721302, India.and
3. Professor, AgFE Dept., Indian Institute of Technology, Kharagpur, West Bengal-721302, India.
4. Scientist and Head, Surface Water Analysis and Modeling Division, National Institute of Hydrology, Jalvigyan Bhawan, Roorkee-247 667, India.