1. Assistant Professor, Dept. of Mechanical Engineering, North Eastern Regional Institute of Science and Technology (NERIST) (Deemed Univ.), Nirjuli-791 109, Itanagar. Arunachal Pradesh, India (corresponding author).
2. Professor, Dept. of Hydrology, Indian Institute of Technology Roorkee, Roorkee-247 667, Uttarakhand, India.
3. Retired Professor and Emeritus Fellow, Dept. of Hydrology, Indian Institute of Technology Roorkee, Roorkee-247 667, Uttarakhand, India.