Sustainable development refers to a pattern of development that meets the needs of the present generation without compromising the ability of future generations to meet their own needs. It seeks a balance between economic growth, social equity, and environmental protection. In the context of decentralisation and local governance, sustainable development depends significantly on the capacity of local institutions to manage natural resources, ensure public participation, and implement environmentally responsible policies. However, numerous challenges hinder the achievement of sustainable development and environmental conservation. One of the major challenges is rapid population growth and urbanisation. Increasing population exerts tremendous pressure on natural resources such as land, water, forests, and energy. Expanding urban settlements often lead to the conversion of agricultural land, deforestation, and loss of biodiversity. Local governments face difficulties in providing adequate housing, sanitation, waste management, and public services, resulting in environmental degradation. Climate change has emerged as a critical obstacle to sustainable development. Rising temperatures, irregular rainfall, floods, droughts, cyclones, and sea-level rise adversely affect agriculture, livelihoods, and infrastructure. Rural communities dependent on natural resources are particularly vulnerable. Local governance institutions often lack the financial and technical capacity to prepare effective climate adaptation and disaster management strategies. Environmental pollution is another serious challenge. Air pollution from industries and vehicles, water pollution due to untreated sewage and industrial waste, and soil contamination from excessive use of chemical fertilizers and pesticides threaten both human health and ecosystems. Inefficient waste disposal systems, especially in rapidly growing towns and villages, worsen environmental conditions. Decentralised institutions frequently struggle with inadequate infrastructure and limited resources for pollution control. Deforestation