BHOPAL: Madhya Pradesh chief minister Shivraj Singh Chouhan on Tuesday said he is taking legal action against top Congress functionary Digvijaya Singh who accused him of corruption in televised press conference on Monday.Chouhan was reacting to calls for his resignation by the opposition following the Congress’s charge that the state task force investigating the irregularities had tampered with evidence in the Vyavasayik Pareeksha Mandal, or Vyapam recruitment scam, involving politicians, officials and businessmen. Digvijaya and other Congress officials produced excel sheet evidence against Chouhan“The rajas and maharajas of the Congress are unable to stomach a farmer’s son running the government in Madhya Pradesh,” said Chouhan. “The Congress thinks it can better the party’s situation in the state by maligning the image of the chief minister,” he added.Chouhan alleged all allegations against him were false and questioned Digvijaya’s credibility. “Digvijaya Singh is an expert in falsehood and lies. Take any of his previous statements and see how reliable he is in his claims. I am amazed that the Congress did not wait till the completion of the Vyapam investigations by the special investigation team. They have gone from one law court to another and been told that the investigations are satisfactory. The HC and SC found the investigations going in the right direction,” the CM said.Former MP CM and Congress general secretary Digvijaya Singh.“Now Digvijaya and the Congress want to prove that the investigations are being manipulated,” Chouhan said. “They’re questioning the probe under the direct monitoring of the high court,” he added.Senior Congress leader Digvijaya Singh appeared before SIT on Monday and submitted an affidavit along with copies of what he claimed was the "original" excel sheet of 131 contractual teachers’ appointments. The Congress excel sheet had "CM" marked against 48 appointees.The Congress also submitted a copy of the excel sheet from the STF investigations in which the CM’s name did not figure. Congress claimed that the excel sheet was tampered with by the STF and manipulated to save the chief minister.