The main objective of the study was to assess the impact of climate change on drought hazards through integrated Database Management System (DMS) on three GIS (Geographical Information System) modules i.e. climate informatics and land use-informatics and hydro-informatics. The Dabka watershed constitutes a part of the Kosi Basin in the Lesser Himalaya, India in district Nainital has been selected for the case illustration. Hydro-informatics module consists of daily, monthly and annual record of spring hydrology and stream hydrology of study area. Land use informatics consists of land use mapping and change diction i.e. decadal changes and annual changes whereas the Climate informatics module consists of spatial distribution of climate and its change detection through daily, monthly and annual weather data (temperature, rainfall, humidity and evaporation) of two study periods i.e. during 1985-1990 and 2005- 2010. The spatial distribution of climate throughout study area suggesting three types of climatic zones i.e. sub-tropical, temperate and moist temperate which are respectively favorable for mixed forest, pine forest and oak forest in the mountain eco-system. The results of climate-informatics advocating that all these climatic zones shifting towards higher altitudes due to global climate change and affecting the favorable conditions of the existing land use pattern. In order to that the oak and pine forests have decreased respectively by 25 % (4.48 km2) and 3% (.28 km2) during the period of 1990 to 2010. The results also advocated that the overall accelerating factor of land use degradation in the study area broadly categorizes as dominant factor and supporting factor. Out of the total seven classes of the land use land cover, five classes (i.e. Oak, Pine, Mixed, Barren and Riverbed) are being degraded dominantly due to climate change factor and anthropogenic factors plays a supporting role whereas only two classes (Scrub land and agricultural land) are being change dominantly by anthropogenic factors and climate change factors plays a supporting role. Expansion of mixed forest land brought out due to upslope shifting of existing forest species due to climate change factor only because upslope areas getting warmer than past with the rate of 9?c-12?c/two decades. Consequently the results concluded that the high rate of land use degradation accelerating drought hazard during non-monsoon period as dry-up of natural springs and decreasing trends of stream discharge etc. This has serious implications on livelihood and food securities as natural springs and streams constitute the main source of drinking water and irrigation in the region.