Suman Yadav, Indian Institute of Technology Bombay, Mumbai, India, Pradnya Vernekar, Indian Institute of Technology Bombay, IDP in climate studies, Mumbai, India, Taveen Singh Kapoor, Indian Institute of Technology Bombay, IDP in Climate Studies, Mumbai, India, Chandra Venkataraman, Indian Institute of Technology Bombay, Chemical Engineering, Mumbai, India and Harish C. Phuleria, IIT Bombay, Centre for Environmental Science & Engineering, Mumbai, India