Bihar SIR (பீகார் சிறப்பு வாக்காளர் பட்டியல் திருத்தம்): Around 6.5 lakh people from Bihar are set to be included in the Tamil Nadu voter list, with 3.5 lakh of them residing in Chennai alone. This special voter list revision has raised concerns and discussions about its potential impact on the 2026 Tamil Nadu Assembly elections. Political observers are closely watching how this demographic shift