It is now well established that climate change will deeply affect both ecosystems and hydrological systems, especially in the Himalayan region. Overall, snow and ice from the Himalayan glaciers will melt faster than it accumulates and surrounding countries (e.g. India) will be impacted socially, economically and ecologically. Climate change is expected to have both short and long term effects on the hydrological system. In the short term, discharge of mountain rivers is projected to increase due to the additional melting of snow and glaciers of the Himalayas. In the long term, with glaciers declining, there will be a reduced amount of water flowing into rivers. Runoff variability will increase and reflect precipitation variability. Northern Indiais highly dependent on summer monsoons and glacier snowmelt for its water resources. This region needs damage-reducing techniques such as efficient and relevant adaptation measures and response strategies in order to cope with the changing patterns of water resources availability.