With the announcement of the Swaraj India Party, academic and activist Yogendra Yadav starts a new political experiment. After his falling out with the Aam Aadmi Party, he and lawyer Prashant Bhushan have thrown their energies behind their Swaraj Abhiyan platform for the last many months. On Sunday, they announced the formation of their new political party. Excerpts from an interview with Anoo Bhuyan.