"The elections being held in different states are decisive as it is going to be a mandate against the NDA government at the Centre, which made people stand in long queues (for withdrawing money after the November 8 note ban)," the former Union minister told PTI.
He expressed confidence on victory of the alliance between Congress and Samajwadi Party (SP) in Uttar Pradesh.
"People in Uttar Pradesh are going to vote for the SP-Congress alliance," he said.
Nath, who represents Chhindwara seat in Lok Sabha, criticised Central government for "putting people from middle class as well as the poor in distress with sudden demonetisation."
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He said Narendra Modi government's claim to bring out black money by demonetising bank notes of Rs 1,000 and Rs 500 denominations has turned out to be hollow.
"Not only Prime Minister, but all leaders of BJP are also involved in gimmickry and have done a nautanki (drama) in the name of demonetisation," Nath said.