Mega dam on the roof of the world | உலகின் கூரையில் மெகா அணை

China is planning to build the world's largest dam very close to India's border. It may be used as a potential weapon against India. In this video, Prof Nithiyanandam, Professor and the Head of the Takshashila Institution's Geospatial Program, talks about the possible impact of this dam on India and Bangladesh.