Swachh Bharath Narendra Modi Abiyan 2015

 This campaign was officially launched on 2 October 2014 at Rajghat, New Delhi, where Prime Minister Narendra Modi
himself wielded broom and cleaned a road. The campaign is India's
biggest ever cleanliness drive and 3 million government employees and
schools and colleges students of India participated in this event.
The mission was started by Narendra Modi, the Prime Minister of India,
nominating nine famous personalities for this campaign, and they take up
the challenge and nominate nine more people and so on(like the
branching of a tree). It has been carried forward since then with famous
people from all walks of life joining it.