Dinesh Karthik, RCB Batting Coach and Mentor: After retiring from the Indian Premier League (IPL), Dinesh Karthik (DK) is going to enter RCB. Dinesh Karthik is now going to be seen in the role of batting coach and mentor instead of wicketkeeper batsman of Royal Challengers Bangalore team. Earlier, Karthik has announced his retirement from IPL on June 1.