Vijay and Trisha in Ghilli, the 2004 blockbuster that made them one of Tamil cinema's most recognised on-screen pairings. There is a version of Vijay that Tamil Nadu saw on Monday, the man standing at the centre of the state’s biggest political upset in decades. And then there is the version Trisha Krishnan has been describing in interviews for years, the one who walks onto a film set, finds a corner, stares at a wall, and says almost nothing to anyone. The wall and the corner Vijay and Trisha appeared on Coffee With Anu, the chat show hosted by actress Anu Haasan, together during the period when they were Tamil cinema’s most in-demand on-screen pair, fresh off the back of back-to-back hits starting with Ghilli in 2004. While describing life on a film set, Trisha pointed out that the cast and crew generally spent their downtime together, socialising, hanging around between shots, the usual rhythm of a long shoot day. Vijay, she said, did not do any of that.…