Taking a swipe at his rivals, the BJP chief said he would like to ask Congress, SP, BSP and AAP as to why they are so pained.
Shah said while he understands dealers of black money, fake currency, hawala and drug are rattled what he cannot fathom as to why leaders like Mulayam Singh Yadav, Mayawati and Arvind Kejriwal are joining the list of such people.
Assembly polls on his mind, Shah consistently targeted SP, BSP and Congress, BJP's rivals in Uttar Pradesh, AAP, its challenger in Punjab besides Congress, but skipped any mention of TMC chief and West Bengal Chief Minister Mamata Banerjee, who was the first leader to take on the government. He named her in his reply to a question.
"I can understand the pain of those keeping black money, fake currency, terrorists, hawala operators, naxalites and drug dealers with this decision. What has amazed me is the way some political parties are rattled.
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He challenged political parties to face the polls with the issue and said "People will decide."
These political parties always questioned the Modi government what it was doing against black money and now it has given such a hard blow to black money and they are rattled, he said.
"What is the problem of these four parties? They have exposed themselves and shown their true faces," Shah said.
To a poser that these parties have claimed to have voiced concerns of the poor, he said the demonetisation move will do no harm to the poor. "But some political parties have become poor."
Asked about Mayawati's charge the move amounted to "economic emergency", he said it has caused economic emergency in her party BSP.