Kohli had said before the start of the UAE leg of the IPL that he would be stepping down as RCB captain at the end of the season.
Player of the match Narine termed it as his greatest T20 performance.
Narine's impactful knock of 26 runs off 15 balls after Shubhman Gill (29) and Venkatesh Iyer (26) provided a good start to KKR.
IPL 2021, Eliminator: Royal Challengers Bangalore win toss, elect to bat against Kolkata Knight riders
Both the teams are unchanged from their previous matches.
RCB will lock horns with KKR on Monday in the Eliminator and de Villiers also revealed that skipper Virat Kohli is all pumped to take the field for the clash in the evening.
On paper, it would be a battle between two evenly-poised teams, but overall, KKR has a slight edge, having won 15 out of 28 matches they played over the years.
Led by Virat Kohli, Royal Challengers Bangalore will play Kolkata Knight Riders on Sept 20 in their first match post restart of the IPL in UAE.