While AICC today issued a press note about the said SMS, Singh put up a link on his twitter page of the message which was purportedly exchanged between Chouhan's wife Sadhana Singh and Sudheer Sharma, an accused in the Madhya Pradesh Professional Examination Board or Vyapam scam.
Singh gave two mobile numbers and an SMS claiming it was exchanged between Sadhana Singh and Sharma and contained a candidate's name for selection in the examination conducted by Vyapam.
The pen drive purportedly contained telephone numbers of Shivraj Singh Chouhan's official residence and mobile phone numbers of the Chouhan couple along with that of other officials.
Singh has been attacking Chouhan for quite some time now over the Vyapam scam.