"After Trinamool Congress' withdrawal...government lost its credibility. BJP feels this (reshuffle) is an exercise in vain," party spokesperson Rajiv Pratap Rudy told reporters, adding the government of Prime Minister Manmohan Singh "should have sought a "fresh mandate" before going for this exercise (reshuffle)".
Replying to a question, he said the BJP won't hesitate to stall it if it helps fill the government's coffers and fight corruption.
Mr Rudy claimed that two years ago, by stalling the winter session of Parliament over the 2G spectrum scam issue, there had been a net benefit of Rs. 2 lakh crore to the country.
"If by obstructing Parliament, resources of the exchequer are filled, BJP will not hesitate...," he told reporters, adding the party also cannot remain silent to "monumental corruption" witnessed in the Congress-led UPA government.
The Prime Minister also came under sharp attack from the BJP leader who said the former was known as an economist and for his honesty but in UPA-II that has "changed".
Mr Rudy also said the PM was a Cambridge University scholar, had served in prestigious positions, including as Finance Minister, Finance Secretary, Governor of Reserve Bank of India etc. and "nowhere in the world do we have a Prime Minister who is so qualified".
"But after promising growth rate of 9.2 per cent, it is hovering around 5.2 per cent", he added.