Rejecting Singh's contention that GDP growth will plunge by 2 per cent, he said demonetisation will have positive impact on the economy over medium to long term as the money from shadow economy will find its way into the mainstream.
"Those who did not consider the generation of so much black money and scams during their regime as blunder are now finding the crusade against black money as blunder," Jaitley said.
As the Rajya Sabha was repeatedly adjourned with Opposition insisting that the Prime Minister be present during the entire debate, Jaitley lashed out at the opposition saying it was not keen on debate but on disruption.
"The government position is very clear from the day one that we are ready for the debate.... The Opposition was finding excuses to avoid discussion but today morning they were taken by surprise when we announced that the Prime Minister will participate in the debate.
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Stressing that demonetisation decision will have a
"positive" impact on the economy, Jaitley said, "This (the move) will have positive impact as far as the medium and long terms are concerned. Lot of shadow money will become part of banking system (due to demonetisation)."
The Minister said the measure will increase lending capacity of banks which could extend the money to farmers, social sector and also industry.
On an allegation that the some BJP leaders were aware of the move, while Jaitley was not kept in the loop, the Finance Minister said, "This decision was kept a secret. The people who needed to know, knew (about it)... The allegation is already contradictory that the information was known to some BJP members as though I was not a BJP member."
Jaitley also rejected the accusation that RBI governor Urjit Patel did not address the media after the announcement of the scheme, saying the "office people are supposed to perform" and not come out in front of the camera.
He also rejected the JPC demand by some of the Opposition parties, saying there should be some "evidence" or "blame" for initiating such investigation.