The National Environmental Engineering Research Institute (NEERI), located in Nagpur, India, is a premier research and development institution dedicated to advancing environmental science and engineering. Established in 1958, NEERI operates as a key laboratory under the Council of Scientific & Industrial Research (CSIR) and is committed to delivering innovative solutions to pressing environmental challenges. With a team of over 600 scientists and engineers, NEERI focuses on diverse areas such as water and wastewater management, air pollution control, waste management, and climate change.

The institute plays a vital role in shaping environmental policies and has undertaken over 5000 projects, earning more than 150 patents. NEERI's services include comprehensive environmental impact assessments, analytical testing, and customized technology development for sustainable practices. Notable initiatives include the Ganga River Rejuvenation project and the establishment of a national air quality monitoring network. Through research, training, and consultancy, NEERI aims to promote sustainable development and adherence to global environmental standards.