1. Professor, Dept. of Civil Engineering, Indian Institute of Technology, Roorkee 247667, India.
2. Junior Consultant, Frischmann Prabhu India, 315, Balgovind Wadi, New Prabhadevi Rd., Prabhadevi, Mumbai 400025, India.
3. Lecturer, Dept. of Civil Engineering, College of Engineering, Thiruvananthapuram, Kerala 695 004, India.