The tall West Indian took 4 wickets for 20 runs including bowling the match-turning last over on Wednesday night. With 12 required off the final over, Russell held his nerve to concede only 4 runs and took a wicket. He won the Man-of-the-match award.
"It is the first time that I am wearing this purple cap and it feels good on my head. I hope I can keep wearing it with a lot of pride," Russell, who is the joint highest wicket-taker now in IPL 2016 with 13 victims, told IPL's official website.
Mumbai Indians' Mitchell McClenaghan too has same number of wickets but Russell is the Purple Cap holder with a better economy rate.
Known for his big-hitting, Russell said he wanted to bowl fast, at 150 kmph and "hit the ball out of the ground".
"I am a true all-rounder and I aim to bowl at 150 kmph and then hit big sixes. I want to hit the ball out of the ground. You do have a lot of all-rounders who bowl at 130 kmph and mid 130s and can bat but I want to bowl fast.
"At the end of the day, a type of all-rounder like me is just trying to raise the bar as high as possible. I have been watching a lot of all-rounders like Jacques Kallis and Shane Watson. The motive is to be as complete as I can," he added.