Lok Sabha Speaker Shri Om Birla; Union Minister of Defence Shri Raj Nath Singh; Union Minister of Health and Family Welfare, Science and Technology and Earth Sciences Dr. Harsh Vardhan; Union Minister of Parliamentary Affairs, Coal and Mines Shri Prahlad Joshi; Union Ministers; Ministers of State, Members of Parliament and other dignitaries taking the pledge of Swachhata, on the occasion of launch of Swachhata Abhiyan (Special Cleanliness Drive) in Parliament House Estate on 13 July 2019