1. Junior Engineer, Rural Engineering Dept., Government of Uttar Pradesh, India.
2. Dept. of Civil Engineering, Indian Institute of Technology, Gandhinagar, Gujarat, India.
3. Associate Professor, Dept. of Civil Engineering, Aligarh Muslim Univ., Aligarh, India.
4. Professor, Dept. of Civil Engineering, Aligarh Muslim Univ., Aligarh, India.