1. Associate Professor, Mahatma Phule Agricultural Univ., Rahuri 413722, India, presently, Academic Visitor, Loughborough Univ., Leicestershire LE11 3TU, U.K.
2. Director, WEDC, Institute of Development Engineering, Loughborough Univ., Leicestershire LE11 3TU, U.K. (corresponding author).
3. Senior Lecturer, Water Engineering and Development Centre (WEDC), Dept. of Civil and Building Engineering, Loughborough Univ., Loughborough, Leicestershire, LE11 3TU, U.K.