Prime Minister Narendra Modi launched the 'Swachhata Hi Seva Movement' on Saturday, urging Indians to actively participate in the cleanliness mission. Ahead of the launch of the movement, the Prime Minister had written personalised letters to around 2000 citizens from different walks of life inviting them to join the Swachhata Hi Seva movement and strengthen the Swachh Bharat Mission. Bollywood actor Amitabh Bachchan and industrial giant Ratan Tata too joined the drive.