Society for Indoor Environment (SIE) is a non-government organization registered under the Society Registration Act XXI of 1860 on 3rd February 2017. SIE has all the representations from the pioneer and reputed research, engineering, medical, and educational institutes in India, including IITs, NITs, CSIR-NEERI, EMC, IPCA, University of Delhi. The core group of SIE formed this organization to address the issues of indoor environment as people spend more than 90% of their daily time in indoor environments. As per latest Global Burden of a Disease report, indoor air pollution has been ranked as second largest killer in India. The air pollution indoors is affecting the buildings and then the health, comfort, performance and behavior of the occupants in such buildings. However, unfortunately, very less attention has been paid on this issue in our country. Therefore, Therefore, it has become the need of the hour to address the issues of indoor environment and to find out the sustainable alternatives/solutions to save our indoor environments.