The Orissa High Court has ordered the Odisha government to take action against pollution in the Mahanadi River. Background: The issue began when concerns were raised about the pollution of the Mahanadi River, which is a major source of water for the state. Parties: The petitioners were several environmental groups, while the respondents were the Odisha government and the Odisha Pollution Control Board. Legal issues: The main legal issue was whether the government had a duty to protect the Mahanadi River from pollution. Court observations: The court observed that the government had a responsibility to protect the river and that pollution was a serious issue that needed to be addressed. Significance: The court's decision has significant implications for the environment and citizens in Odisha, as it requires the government to take action to protect the Mahanadi River and prevent pollution. The decision is expected to lead to the implementation of measures to reduce pollution and protect the river.