The veteran actor joined Hazare in the Ramlila ground. He interacted with the crowd and regaled them with the popular song Mehangai dayan, khaye jaat hai from the Aamir Khan produced film.
"Peepli Live was a very small effort and venture. Thousands of peepli lives can be assimilated in this movement led by Anna Hazare," Yadav told PTI.
"I wish this movement gets its success soon. Peepli made me see the hard realities of life, including corruption. This movement is real," Yadav said.
Yadav was accompanied by Kumar Deepak, his co-star from the critically acclaimed film, which was a satire on farmers' suicide and the subsequent media and political circus around the issue.
The other celebrities who have supported Hazare include singer Kailash Kher, Anupam Kher, Om Puri, Priyanka Chopra, Bipasha Basu, John Abraham and Nana Patekar among others.