"I am going to move the Madhya Pradesh High Court against the Election Commission's order," Mishra told reporters here.
He was disqualified by the Election Commission for three years for filing wrong accounts of election expenditure during the 2008 assembly polls. His election from the Datia Assembly constituency also stands void.
Mishra who is Water Resources and Legislative Affairs minister in the Shivraj Singh Chouhan government said that according to legal experts the disqualification order was "infructuous".
"After that I have won the people's mandate in 2013 MP assembly polls," he said.
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"My advocate has told me that the case (his disqualification) was related to paid news. Neither the petitioner has provided a document to corroborate paid news charge against me, nor there is a mention of it in the Election Commission's order," he claimed.
Dismissing the Congress' demand for his resignation, Mishra said that if people start putting in their papers according to the rival party's wish, Madhya Pradesh will witness elections daily.
Thereafter, the EC had served notice to Mishra on January 15, 2013, Bharti told PTI today.
Mishra had moved the Madhya Pradesh High Court and the Supreme Court against the EC notice, but did not get any relief, he added.
The EC held the final hearing of the case on March 17 this year and passed its order today.
"Truth has finally triumphed," Bharti said.
The leader of opposition in MP assembly, Ajay Singh, said, "In view of the EC order, Mishra should immediately resign from the Cabinet."
State Congress chief Arun Yadav too sought Mishra's resignation.
The Aam Aadmi Party (AAP) burnt the effigy of Mishra this evening near Board officer square in Bhopal, seeking his resignation.
"We burnt his effigy. We want him to resign immediately," state AAP join secretary and spokesman Dushyant Dangi said.
Mishra, who is also holding charge of Public Relations Department, was first elected as MLA in 1990.