This document provides an overview of sustainable development and the role of financial institutions and markets in Bangladesh. It discusses how financial institutions like banks can contribute to sustainable development through green banking initiatives, investing in clean technology, and engaging in corporate social responsibility activities. It also examines some barriers that can prevent financial institutions from pursuing sustainability, such as high initial costs, regulatory restrictions, and financial crises. Overall, the document analyzes how practices involving green banking, energy efficiency, and eco-friendly operations can help drive sustainable development in the financial sector in Bangladesh.