<p>The Western Indian Himalaya, encompassing Ladakh, Jammu and Kashmir, Himachal Pradesh and Uttarakhand, represents one of India’s most environmentally fragile and strategically important mountain regions. The region sustains the headwaters of major river systems including the Indus, Ganga and Yamuna and contains extensive cryospheric resources that regulate seasonal hydrology across northern India. Recent observations indicate significant changes in glacier mass balance, snow cover variability and extreme precipitation patterns associated with regional climate warming. These changes interact with steep terrain, fragile geology and active tectonics to generate a complex multi-hazard environment characterized by landslides, debris flows, flash floods and cryosphere-related disasters. At the same time, rapid expansion of infrastructure, hydropower development and tourism is increasing the exposure of settlements and economic assets to environmental risks within fragile mountain landscapes. This paper synthesizes current scientific knowledge on environmental drivers, hazard processes and institutional arrangements in the Western Indian Himalaya and examines comparative perspectives from the North-Eastern Himalaya and the European Alps to highlight differences in climatic regimes, hydrological processes and governance approaches in mountain regions. The analysis suggests that environmental processes in the Western Himalaya operate as a coupled climate–cryosphere–hydrology–hazard system, while governance of the region remains fragmented across sectoral institutions. The paper therefore argues that the environmental complexity of the Western Indian Himalaya, together with increasing development pressures and cascading hazards, necessitates the establishment of an integrated national mechanism capable of coordinating scientific monitoring, hazard assessment and risk-informed development planning across this strategically important mountain system.</p>