1. Ph.D. Scholar, Civil Engineering Dept., VNIT, Nagpur, 440 011, India; and, Executive Engineer, Public Health Engineering Dept., Government of Chhattisgarh, Raipur, 492 001, India. E-mail: mlagrawal10@hotmail.com
2. Professor, Dept. of Civil Engineering, Visvesvaraya National Institute of Technology, Nagpur-440 011, India. E-mail: drrajeshgupta123@hotmail.com
3. Engineering Consultant, 201 Utkarsha-Vishakha, 42 Bajaj Nagar, Nagpur-440 010, India. E-mail: pramod_bhave@hotmail.com