Prime Minister Narendra Modi has expressed appreciation for the people who participated in the 'Swachhta hi Sewa' campaign.<br/><br/>In a tweet, the Prime Minister said that he specially appreciate all those who took part in cleanliness activities & other social service initiatives across India.<br/><br/>Modi had in his recent 'Mann ki Baat' programme urged the people to hold a sanitation campaign from 15th September to 2nd October, the birth anniversary of Mahatma Gandhi.