The former Proteas captain received no real support from the rest of the batting with only Delhi skipper Axar Patel striking 43 as his team could reach 190-9 chasing a target of 205.
Kolkata's West Indian spinner Sunil Narine was the chief destroyer for his team with figures of 3-29 while fellow slow-bowler Varun Chakravarthy took 2-39.
Earlier, the Knight Riders reached a total of 204-9 in their 20 overs thanks mainly to Angkrish Raghuvanshi who hit 44 off 32 balls while Rinku Singh smashed 36 off 25 deliveries.
It was the Knight Riders' fourth win in 10 matches this campaign and they are seventh in the standings while Delhi are fourth ater slipping to their fourth defeat.
In a classic IPL nail-biter that went right down to the wire, Lucknow Super Giants pulled off a sensational chase, defeating Kolkata Knight Riders by 3 wickets with the very last ball at Eden Gardens on Thursday.
David Miller could not provide the finishing touch as the Delhi Capitals fell to a one-run defeat against Gujarat Titans in a thrilling Indian Premier League clash.
Yashasvi Jaiswal smashed an unbeaten 77 from just 32 balls as Rajasthan Royals beat Mumbai Indians by 27 runs in their IPL encounter that was reduced to 11 overs because of rain.
Chennai Super Kings coach Stephen Fleming is hopeful South African star Dewald Brevis will feature in their fixture against Delhi Capitals on Saturday.
