Barbie Hazarika Centre for the Environment, IIT Guwahati-781039,Assam,India Sharad Gokhale Department of Civil Engineering, IIT Guwahati-781039, Assam, India PDF Published 2015-11-15 Issue Vol. 2 No. 1&2 (2015): Special Issue: IDC Foundation - De-Polluting Indian Cities: Problems and Solution Section Review Article