The Supreme Court of India has directed the government to take action against pollution in the Yamuna river, following a petition filed by an environmental organization. Background: The petition highlighted the severe pollution in the Yamuna river, and the need for urgent action to address the issue. Parties: The petitioners included an environmental organization, and the respondents included the Union of India and the Ministry of Environment, Forest and Climate Change. Legal issues: The primary issue before the court was whether the government had a responsibility to take action against pollution in the Yamuna river. Court observations: The court observed that the pollution in the Yamuna river was a serious threat to the environment and public health, and that the government had a duty to take action to mitigate the problem. Significance: The order has significant implications for the conservation of the Yamuna river, and is expected to lead to the implementation of measures to reduce pollution and protect the river's ecosystem. The court's decision is seen as a major step towards promoting environmental protection and sustainability in the country.