Dr Modak is currently Executive President, Environmental Management Centre LLP and Director, Ekonnect Knowledge Foundation. Earlier he was a Professor at Indian Institute of Technology, Bombay.Dr Modak has worked with almost all key UN, multi-lateral and bi-lateral developmental institutions and intergovernmental organizations in the world. Apart from Government of India and various State Governments, his advice is sought by Governments of Bangladesh, Egypt, Indonesia, Mauritius, Thailand and Vietnam.
He is a Member of Indian Resources Panel at MoEFCC, Member of Task Force on Sustainable Public Procurement at the Ministry of Finance.Dr Modak has extensively published and completed several assignments on the subject of Air Quality Management, in modelling and monitoring network design. He has developed several tools for analyses and interpretation of air quality data. Dr Modak was founder president of the Society for Indoor Environment.
Dr Modak has published several books on environmental management. His latest book “Environmental Management Towards Sustainability” was released in December 2017 with CRC Press of Taylor and Francis Group. Dr Modak has been recipient of the Distinguished Alumni Award of AITAA in 2010 for Significant Contribution to International Affairs.