birth date: 12/12/1956 (as per the image above - rajni's birth date is dec 12, 1950 in real life)
since his age is shown in the image as 60, this means kabali is released in 2016.
also confirmed by the dialogue "25 varuzhathukku munnadi...." as 2016 - 1991 (date of arrest) is 25.
only thing that does not tally is the "happy new year 2016" visual shown in the mayanadhi song.