Party General Secretary Ajay Maken told reporters that it was unfortunate that AAP which was formed to fight corruption was witnessing "sale of tickets".
He, however, steered clear of Bhushan's demand that party convenor Arvind Kejriwal should be removed.
"It is their internal party matter," Maken said.
The Congress leaders statement came close on the heels of Bhushan creating a flutter by praising Kiran Bedi and calling BJP's move to field her as a "masterstroke".