A party leader speaking separately on the condition of anonymity said that the BJP is free to bring a no-confidence motion if it is so sure of its strength of toppling the government.
At the All India Congress Committee briefing, Tewari said the UPA had the numbers in 2008 and similarly it has the numbers this time also.
"The BJP had not allowed the PM to speak in the House during the 2008 trust vote, levelled baseless allegations and displayed wads of cash on the floor of House in a contempt of the Parliament. It had to face the music for it and bite the dust in 2009 general elections. In 2012, this time again, the same condemnable and shameful gesture was displayed, the BJP is not allowing the PM to make his statement," Tewari said.
Swaraj had charged that "huge revenue was generated but it did not go to the government and went to the Congress party".
Tewari accused the BJP of practising "double standards" on the CAG reports saying such findings are dubbed hypothetical by the opposition party, when they concern the states governed by them.
Targeting CAG, Tewari said, "The manner in which all these reports are being compiled...this is beyond the legal mandate of the CAG.... There is nothing, which gives the CAG the legal mandate to engage in this sort of exercises in which he has been indulging".
Tewari at the same time steered clear of questions on whether he felt the CAG was working with any political motive saying that it is "not the remit of any political party" to attach motives to Constitutional bodies. He strongly defended the government for refuting the "computations" by the CAG.
"To hold a CAG report flawed on the basis of facts is no contempt of any Constitutional body.... Any political party is well within its rights to question and dispute the findings the CAG or any other Constitutional body arrive at," he said.
Slamming PM's statement disputing CAG's findings, Leader of Opposition in Rajya Sabha Arun Jaitley on Monday said it was an assault on constitutionalism and constitutional authority.