Water, energy and food security are fundamental strategic challenges for India and its neighbours. In this Sydney Ideas conversation Professor Brahma Chellaney from the Centre for Policy Research, New Delhi and Professor Bill Pritchard from the University of Sydney discuss the contentious politics and economics of water, energy and food in the Indian subcontinent. International and national regulatory regimes play an important role in the way water and energy resources are distributed across South Asia. Held as part of Sydney Ideas on 8 November 2017: http://sydney.edu.au/sydney_ideas/lectures/2017/professor_brahma_chellaney.shtml