Step 1: Understanding the Concept:
The question asks about the subject matter of the case Krishna Gopal v. State of M.P..
Step 2: Detailed Explanation:
The case of Krishna Gopal v. State of M.P. (1995) is a significant judgment of the Madhya Pradesh High Court concerning noise pollution.
In this case, the court dealt with noise pollution caused by a glucose saline factory in a residential area. The court recognized noise as a pollutant and an environmental hazard. It held that the right to a clean and healthy environment is a part of the Right to Life under Article 21 of the Constitution, and this includes the right to a noise-free environment.
The court observed that noise can have serious effects on the psychological and physical health of human beings. It issued directions to control the noise levels from the factory. While the case touches upon broader environmental pollution, its specific focus and the precedent it set relate to the regulation of noise pollution.
Step 3: Final Answer:
The case of Krishna Gopal v. State of M.P. relates to noise pollution.