The High-Altitude Bhagirathi Valley (HA-BV) in Garhwal Himalaya is a region of significant ecological and cultural importance, which is vulnerable to the impacts of climate change. Community-based approaches to climate change adaptation (CB-CCA) have emerged as an important strategy to build resilience and sustain the local community′s economic and social well-being. This paper aims to examine the CB-CCA and livelihood security initiatives in HA-BV, focusing on the strategies implemented to address the challenges posed by climate change. The paper analyzes the successes and challenges of these approaches and contributes to the discourse on sustainable development in the Himalayan region. The study findings can inform future efforts to build climate resilience and livelihood security in similar contexts. This research demonstrates the potential of CB-CCA to enhance the adaptive capacity of vulnerable communities and provides insights into the co-benefits of sustainable development and climate resilience in HA-BV.