The Orissa High Court has ordered the Odisha government to take action against pollution in the Mahanadi River. Background: The issue began when it was discovered that the Mahanadi River was heavily polluted due to industrial and agricultural waste. However, some environmental groups challenged the government's inaction in court, arguing that the pollution was destroying the environment. Parties: The petitioners were environmental groups, while the respondents were the Odisha government and the Pollution Control Board. Legal issues: The main issue was whether the government had a duty to take action against pollution in the Mahanadi River. Court observations: The court observed that the government had a duty to protect the environment and that pollution in the Mahanadi River was a serious issue that needed to be addressed. Significance: The court's order has significant implications for the environment, as it means that the government will have to take action against pollution in the Mahanadi River. This decision is likely to be welcomed by environmental groups, who have been campaigning against pollution. The court's decision also highlights the importance of government action in protecting the environment. The case has now been closed, and the government will have to take action against pollution in the coming months.