"It is really pitiful that the opposition parties which fought Congress, at least some of them... Inside the house and outside it and in elections... They all have joined hands with Congress and are ready to work under its leadership," he said outside Parliament.
Congress which, along with opposition parties including TMC, CPI(M), DMK, is actively campaigning against the note ban to highlight the problems people are facing due to it. Its vice-president Rahul Gandhi recently addressed the media flanked by opposition leaders including TMC MPs.
"Some people are saying we are with Congress, but we do not know what it is doing... We are not a party to this. This is laughable. How can you join the leader holding the press conference if you do not know what he is speaking about?" he asked.
The minister said the Congress rule was "full of corruption. Scams and scandals, 2G, 3G, Commonwealth Games or the coal scam...All happened during the tenure of Congress-led governments. Some of the parties, which are now making common cause with Congress, also fought against this (graft).
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Naidu said the rival parties are against Prime Minister Narendra Modi because he is fighting against corruption.
"This is ironic. Earlier, when opposition used to fight
corruption, the ruling party would suppress their voice and never accept their demand for action or debate," Naidu said.
"Today, the ruling party is fighting corruption and black money and some of the opposition parties are blocking the government's action. It appears they are fighting for the corrupt, who have been affected by demonetisation... Black money holders and terrorists, those indulging in women trafficking and drug trafficking.
He said the Opposition is welcome to give suggestions to improve the situation arising out of demonetisation, but "how do you find fault with the government's decision? This is a historic, radical bold decision taken by the PM. It is a fight against black money and corruption".
"He started right from the day he took over as prime minister and then a series of steps followed. This is a major step toward fighting black money and corruption and it is ironic to see the government fighting corruption and the Opposition rallying behind those who are affected.
The minister lauded parties supporting demonetisation. "We appreciate the parties which have taken a principled stand like BJD and JD(U)," he said.