Since 2004, with the new premierships of Manmohan Singh, in India, and Abdullah Badawi, in Malaysia, India and Malaysia have been playing active roles in decision-making on many issues, regionally through regional blocks. Despite these positive developments, the area where there is a pressing need for the two countries to discuss and act upon concerns environmental security, mainly freshwater scarcity and security. Both India and Malaysia face worrying proportions of freshwater shortages, due to a number of reasons, including increasing individual consumption, industrialisation and poor agricultural practices. This article discusses how both India and Malaysia, as well as their roles in four regional organisations, can recognise the problem of freshwater scarcity and security and propose solutions for adaptation and mitigation. The theoretical framework within which this discussion is couched in is liberalism.