Bihar Deputy CM Samrat Choudhary said Tamil Nadu CM MK Stalin's participation in the Congress-RJD's 'Voter Adhikar Yatra' is a threat to democracy. "Lalu Prasad Yadav and family are inviting all those who insulted and abused Bihar and Biharis," he said. Earlier, BJP's K Annamalai shared a compilation of alleged "uncouth remarks" made by Stalin and DMK leaders against Biharis.