CPM follows scientific rigging not the brazen show of power which you are used to seeing on ational TV. It starts with collection of data on voters while voters list is being prepared to remove names and add names to suit the planned rigging to having cadres network and intimidate voters and affect turnout before voting to sabotaging elcetion process using legal methods, e.g slow voting to discourage urban voters and then jamming with fake cadres the long queues till end of day to removing ink as soon as bogus voters are done. If photographs it looks like canvassing and enthusiatic voting. You cannot detect anything worng until you experience it.
