Department-related Parliamentary Standing Committee on Science & Technology, Environment & Forests, present this Two Hundred and Sixty-fourth Report on "Environmental issues in Mumbai and Visakhapatnam". Pollution and environmental degradation is affecting all but its adverse effect is more in metropolitan cities and many of the Tier-II cities. In that context, the Department-related Parliamentary Standing Committee on Science & Technology, Environment & Forests took up the subject of pollution levels of some of the metropolitan and Tier-II cities of the country for its examination and report. The Committee undertook study visit to Mumbai and Visakhapatnam from 30th January to 2nd February, 2015 to study the pollution index of these two coastal cities.