1. Research Scholar, Dept. of Hydrology, Indian Institute of Technology, Roorkee, Roorkee-247667 U.A., India.
2. Professor, Dept. of Irrigation and Drainage Engineering, College of Technology, G.B.P.U.A.&T., Pantnagar-263145, Uttarakhand, India.
3. Professor & Head, Dept. of Civil Engineering, College of Technology, G.B.P.U.A.&T., Pantnagar-263145, Uttarakhand, India.