Modi has said the Swachh Bharat Abhiyan he launched earlier in the day should clean up the country by 2019, the 150th anniversary of Mahatma Gandhi.
At a gathering here, Modi asked them to nominate more people for the task.
"I have invited nine people and asked them to come to public places and work towards a clean India," Modi said.
The others in the group of nine are Goa Governor Mridula Sinha, Congress MP Shashi Tharoor, yoga guru Baba Ramdev, actor-producer Kamal Haasan and the team of television serial Taarak Mehta Ka Ooltah Chashmah.
"These nine people can nominate nine more people, and they can clean and upload videos," said the prime minister.