In the current quest for sustainable development, it is imperative for industries to assess their externalities and to address them. Corporate Social Responsibility (CSR) has existed in several definitions and dimensions but increasingly has been accepted as a business practice which is economically, socially and environmentally beneficial complies with rules & regulations, and maximizes the stakeholders benefits, all at the same time. CSR primarily has to be determined on the basis of externalities caused by the business as usual and as efforts to address these externalities along with other objectives that are aligned with the Sustainable Developments Goals or as per the government policies. However, it is possible that all externalities are not clearly evident or visible and get neglected. The paper aims at the analysis of Telecom Industries externalities on the parameter of environmental responsibilities and efforts by the industry to address these concerns. The paper tries to assess telecom organizations CSR initiatives by analyzing their CSR Reports and Annual reports. The results show that as far as environment is concerned, energy emission reduction has been a top priority of the industry but biodiversity losses due to emissions of radiations dont find much attention.