Mysore Paints and Varnish Limited (MPVL) is the company allowed to manufacture voters’ ink. Even the director doesn’t know the formula - only 2 chemists working with MPVL know the recipe, and they pass it on to their successors when they retire. For Loksabha Elections 2024, the Election Commission has ordered 26.55L vials worth ₹55 crores from MPVL.