He also expressed happiness over former Prime Minister H D Deve Gowda joining the ambitious campaign.
"I am very happy to see the enthusiasm for Swachh Bharat Mission. We must keep this momentum going for the success of the Mission," Modi said a tweet.
"Am glad that former PM Shri HD Deve Gowda ji joined Swachh Bharat Mission. A very strong gesture," he added in another tweet.
Soon after Modi's call for 'Swachh Bharat' campaign on Thursday, Deve Gowda took a broom and swept the Hassan railway station in in Karnataka.
Asserting that "Swachh Bharat" mission is "beyond politics" and inspired by "patriotism", he had invoked Mahatma Gandhi's vision of a "clean and developed" India as he formally kicked off the five-year-long campaign, which will cover 4,041 statutory towns, on the 145th birth anniversary of the Father of the Nation.