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.
Mallya, however, said that the hammer had fallen at Rs. 10 crore for Yuvraj.
"The hammer did go down at Rs. 10 crore. Normally, my understanding is that when the hammer falls down, that's the final," he said.
"We have written to the IPL governing council regarding this. I am hopeful that they (IPL GC) will consider the matter," Mallya told 'Times Now'.
Mallya said he was otherwise satisfied with his team's acquisitions on the first day of the auction.
"I am satisfied with the players we had acquired today. I am happy that we bought Yuvraj," he said.