Bangalore: Royal Challengers Bangalore owner Vijay Mallya on Wednesday lodged an official complaint with the IPL Governing Council, saying his franchise coughed up Rs 4 crore more on buying all-rounder Yuvraj Singh on the first day of the players' auction.

RCB had almost bought Yuvraj for Rs 10 crore when Kolkata Knight Riders joined in the bidding, and eventually the left-handed batsman was sold for Rs 14 crore to the Bangalore outfit.