India, as an important emerging economy in the world, develops fast. However, environmental problems have been shackling the sustainable development of the country since the colonial period. In this context, with good cooperation with the government, Indian Non-Governmental Organizations (NGO) began early to carry out environmental education for the public and played an important role in the process. Indian NGO’s practice of environmental education has gone through three stages: early exploration, rapid development and sustainable development. For the strategies of environmental education, Indian NGOs adopt different methods of environmental education for different groups, relying on various projects, which reflects its distinct characteristics of environmental education: practicing in nature to cultivate environmental awareness; setting up environmental education content according to local conditions and individual conditions; working closely with the government to promote environmental education.