E4 A - Quality Control and Standards Authorities like - Food Safety Standards Authority of India, Bureau of Indian Standards, ISI, Central Board of Film Certification, Competition Commission of India
E4 B - Water & sanitation related services leading to water body cleaning like National Mission for Clean Ganga, installation, management of clean water and public water tanks, - Central Ground Water Board, Jal Jeevan Mission, Ministry of Jal Shakti & Department of Drinking Water and Sanitation, National Water Informatics Centre, Department of Water Resources, River Development & Ganga Rejuvenation,