He said the BJP's allegations in this regard were only an attempt "to see a ghost where none exists".
"The FM and I are separated by 10 years in age. He is elder, wiser and more senior. He chairs a number of GoMs and I am a member of practically everyone of them."
"We speak to each other everyday and we consult each other on a continuous basis. It is only a feverish and hyper active imagination that can look for ghosts where none exists," he told NDTV.
He was replying to BJP's charge that there was a civil war between Finance Minister and Home Minister.
Referring to the BJP's criticism, Chidambaram said "I think they are hyper-active minds and hyper-active imagintaion. I think they live under the shadow of daily war between two leaders of opposition in their own party and, therefore, they look for ghosts where none exist."
About the reported bugging incident in the offices of Finance Minister and his aides in the North Block, he said he did not know about it until he saw it in newspapers.
He said apparently last September or October, the Intelligence Bureau was asked to look into this complaint or suspcion that the Finance Minister's office had been "bugged".
"They went into it. There was a complete investigation. They sent the substrance to forensic lab. They got a report that it was an adhesive kind of substance. There was no evidence of any bug being planted anywhere."