Speaking to reporters here, state Congress chief Arun Yadav said, "Polling in Shahdol and Nepanagar was held only 11 days after the announcement of demonetisation."
"Both were scheduled tribe-dominated seats and there was no talk of demonetisation among the common people...So, to link the poll results with the demonetisation decision is not correct," he said, adding that the ruling party always had an advantage in the by-polls.
"We will review the results and take corrective measures soon," the Congress leader said.
Criticising Prime Minister Narendra Modi for the decision, he said the people, especially housewives, farmers and labourers, were facing the brunt of it.
Asked about the controversial writings on the graves of the SIMI activists who were killed in an alleged police encounter after a jailbreak, Yadav said the state government should probe the entire issue in detail.