Arun Karthik was named Man of the Match and Series.
Kovai Kings failed to defend 125 runs.
Earlier in the game, Vivek smashed a quick 25-ball 54.
R Vivek was awarded the Man of the Match.
Tuti Patriots narrowly missed out on a playoff spot.
Kaalai, meanwhile, tasted their second straight defeat after a run of four wins.
Siechem Madurai Panthers cruised to their fourth consecutive win in the 2018 TNPL as they crushed Ruby Trichy Warriors by five wickets.