1. Associate Professor of Environmental Health, School of Public Health, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India (corresponding author).
2. Ph.D. Student, Dept. of Civil (Environment) Engineering, PEC Univ. of Technology, Chandigarh 160012, India.
3. Assistant Professor, Dept. of Environment Studies, Panjab Univ. (PU), Chandigarh 160014, India; Coordinator, Centre for Public Health, Panjab Univ., Chandigarh 160025, India.
4. Professor, Dept. of Civil (Environment) Engineering, PEC Univ. of Technology, Chandigarh 160012, India.
5. Professor, Public Health Foundation of India, IIPH, Hyderabad 500033, India; formerly, Professor, CR Rao Advanced Institute of Mathematics, Statistics and Computer Science, Hyderabad 500046, India.