Yogendra Yadav, psephologist-turned-politician, was arrested in Tamil Nadu's Tiruvannamalai district today while on his way to meet farmers protesting against a proposed Rs. 10,000 crore eight-lane Salem-Chennai expressway. In tweets, Mr Yadav, 55, alleged that the police stopped him from meeting farmers, accusing the cops of manhandling. "My crime: Wanting to meet farmers in their home. Where is rule of law?" he tweeted.