Change of climate has by now driven to a variety of impacts on the community, the economy, and the atmosphere. Based on forthcoming scenarios, plains and hilly zones are mostly vulnerable to weather impacts, inclusive of variations in the hydrologic cycle, such as precipitation extremes, forfeiture of biodiversity and ecosystem amenities, drinking water supply and anthropological wellbeing (risks of usual perils). This is owing to their contact to latest weather heating like temperature condition variations and thaw of frost. These features necessitate the use of risk assessment methods capable to designate the compound collaborations between numerous hazards, biophysical and socioeconomic schemes to change of climate adaptation. Present methods used to evaluate climatic change risks frequently deal with distinct risks discretely and will not satisfy a comprehensive depiction of combined results related to various perils (i.e., composite incidents). Further, revolutionary multiple-layer single risk assessment is yet extensively applied, producing delusion of assessments of multiple-risk procedures. This advances vital questions on the distinct aspects of multiple-risk assessments and the obtainable devices and approaches to report. Thus, a review of prevailing methodologies and techniques to evaluate vulnerability, associated risks and their management is presented with comparison, evaluation, critical remarks, and future research needs with focus on drinking water.