In reply to Jets' 149 for 7, Tigers reached their victory target with six wickets down and 7 balls to spare.
Tigers chase began on a poor note after their opener Darren Maddy was dismissed cheaply by Jets' new-ball bowler Srivastava. However former India stumper Dasgupta (32) and his ex state-mate Jhunjhunwala (20) put Tigers' on track with a fine 42-run stand for the second wicket before the latter trying to up the ante heaved one to Abbas Ali stationed at mid-off off Benkenstein.
Jets plucked three wickets in quick succession Benkenstein castled S Das (1) in the following over Ali Murtaza sent Rohan Gavaskar packing for one and two balls later Murtaza tarpped set batsman Dasgupta to leave Tigers reeling on 62/5.
At this juncture McMillan joined by Klusener after seeing off early scares paced up their innings nicely before opening up. McMillan was more aggressive belting the Jets spinners for four sixes and as many boundaries in his 31-ball knock while Klusener was sedate with only two boundaries in his knock.
Earlier, Jets made 149 for 7. Opener Mohnish Mihsra (61 off 46 balls, 3x4s&3x6s) and captain Marvyn Atapattu (36 off 23, 4x4s&1x6s) were responsible for posting a good total with a 65-run stand between them for the fourth wicket.
Klusener was earned Man-of-the-Match award for his efforts
Both teams with two wins and a defeat have four points each from three matches.
Delhi Jets 149/7 in 20 overs (Mohnish Mishra 61, Atapattu 36; Klusener 3 for 16, McMillan 1 for 16, Hayward 1 for 18) lost to Kolkata Tigers 150/6 in 18.5 overs (McMillan 58*, Dasgupta 32, Klusener 27; Ali Murtaza 2 for 7, Benkenstein 2 for 29) by four wickets.