A confident home team Royal Challengers Bangalore (RCB) Wednesday beat a defiant South Australian Redbacks (SAR) by two wickets in a thriller at the Chinnaswamy stadium here to qualify for semi-final of ICC Champions League Twenty20 (CL20).

Chasing an imposing target of 215, RCB's wicket-keeper Arun Kartik hit a mighty six of Daniel Christian's last ball of the 20th over to clinch the exciting tie.

Though Redbacks' speedster Shaun Tait tormented the RCB batters taking five wickets in four overs, he could not deny the home team a sensational win in a nail-biting game.

Earlier, Redbacks hit a blistering 214 for two wickets.