"We have come across a telephonic conversation of the Health Minister, where he is in a hurry to unseat the Chief Minister. This telephonic conversation revealed just a tip of the iceberg," D'Sa said.
"The Health Minister knows what I am talking about. There are telephonic conversations out there. I have heard the conversations. But I will wait for them to be released in the public domain... I can't disclose the source. I am only talking about the conversation of the Health Minister," the spokesperson said.
An audio clip featuring Rane and a local journalist -- where the former claimed that Parrikar in a December 2018 cabinet meeting admitted to possessing a stash of files related to the Rafale deal -- had created ruckus in Parliament during the recently concluded winter session.
Rane had claimed the tape was doctored and Parrikar had subsequently denied making the comment.
The Congress, meanwhile, has demanded the sacking of Rane and a probe by central agencies in a letter to President of India Ram Nath Kovind.