Congress on Thursday rejected the opposition demand for the resignation of Home Minister P Chidambaram on 2G spectrum allocation issue, saying "We do not, in any manner, accept" the allegation made by Subramanian Swamy against him.

"The party does not doubt his integrity. This precise issue has been raised by Dr Swamy in the apex court and is subjudice. Without waiting for the proceedings to be completed, it is highly objectionable and inappropriate for Dr Swamy or anyone else to pass premature judgement on the very same issue on which he is seeking relief", party spokesman Abhishek Singhvi said.

He said the "mischievous attempt" to create a rift between different constitutional functionaries is highly regrettable and ought not to be repeated.

His reaction came after Swamy submitted to the Supreme Court a Finance Ministry document which said the Telecom Ministry could have gone in for auction of 2G spectrum licenses had the then Finance Minister P Chidambaram insisted on it.