Speaking to reporters here, Gadkari said, "The CBI is being misused. The CBI and the judiciary are being used to blackmail Opposition parties. Such facts are coming to light."

But Law Minister Salman Khurshid, while playing down the allegation, rejected it saying that such statements have "no importance."

"If someone makes such an allegation, it has no importance. Are there any facts...judiciary has a respectable place in our system. Even Parliament cannot interfere in its functioning," he said here.

Gadkari said BJP wants the country to have an "impartial and fair" judiciary as it is one of the pillars of democracy with legislature, executive and the media.

"The intention behind what Mamata Banerjee has said is that it is being seen that the judiciary is also being put under pressure by the government," Gadkari said.

Banerjee had last month said that a section of the judiciary is corrupt and that there are instances where court judgements have been bought for money.