An architect-urban planner by profession is the Co-founder and Executive Director of Waste Concern (www.wasteconcern.org). Mr. Sinha is also holding the position of Managing Director of a joint venture company WWR Bio Fertilizer Bangladesh Ltd., Managing Partner of Waste Concern Consultants. He has been working and conducting research in the fields of solid waste management & recycling, clean energy, municipal services planning, and sustainable development for more than twenty eight years.

Mr. Sinha is actively involved in planning, designing and implementation of several waste management projects in Bangladesh as well as in Sri Lanka, Vietnam, Cambodia, Indonesia and Nepal. Mr. Sinha is also involved in designing, financing and implementation of Clean Development Mechanism (CDM) based waste management and energy projects in Bangladesh and other developing countries. Mr. Sinha has advised numerous international agencies, development banks and other organizations on sustainable waste management.

Mr. Sinha  is a recipient of several national and international awards including United Nations (UN) Award, Tech Museum Award from USA, Intel Environmental Award, Schwab Fellow of the World Economic Forum (WEF) and Ashoka Fellow.