He also appeared to be targeting former Prime Minister Manmohan Singh as he told the Congress benches to change its "advisors" who had predicted that GDP will come down by 2 per cent and that there would be no alternate currency for seven months.
"You have all seen the public opinion on demonetisation.. The traditional vote, which used to connect with you, has refused to accept this policy (of opposing demonetisation)," Jaitley said in the Lok Sabha, in an apparent reference to the recent poll results, particularly in Uttar Pradesh where the BJP got a resounding victory.
The Congress party had bitterly attacked the government over demonetisation before the elections as well as during the poll campaigning.
Hailing the Prime Minister for the demonetisation decision, Jaitley said, "A strong leader takes unpopular decisions, while the other takes decisions looking at his interests. Modi is a leader who takes decisions in the national interest."
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Modi was present when Jaitley made the comments while replying to a debate on the Finance Bill during which the opposition criticised the demonetisation decision.
The Finance Minister then went on to target Manmohan Singh, although in a veiled manner, without taking his name.
"For 10 years, those who controlled the economic management of the country, they explained to you this and you decided your position accordingly and you saw the results," the BJP leader told the Congress benches, while taking a dig.
Underlining that demonetisation will end the anonymity factor in the economy, Jaitley said that research all over the world states that cash in the economy leads to tax evasion and leads to facilitation of crime.
"Crime does not end, but cash is a great incentiviser in crime. Does it incentivise crime? Research across the world has revealed that if cash is more in the economy, then there is tax evasion and it facilitates crime," he said.
While hitting out at the Congress, Jaitley remarked that the opposition party was "singing in favour" of cash economy at a time when the world was moving towards digitised economy and the whole world was uniting against tax havens, shadow and parallel economy.
To emphasise the positive effects of demonetisation, Jaitley quoted a columnist from an international financial publication and said, "It is often hard to draw the line between decisive leaders who take unpopular decisions for the benefit of their country.
"And those who make arbitary decisions for the benefit of themselves. Historians may judge the shock of demonetisation as an example of the former."