In a statement issued here, Yadav said the "use of force on Youth Congress activists was totally condemnable."
The BJP rule in the state since 2003 has been marked by scams and the Madhya Pradesh Professional Examination Board (MPPEB) scam was the biggest of all, Yadav said.
The MPPEB scam has ruined the future of thousands of youths and the Congress activists' demonstration yesterday was only a manifestation of their agony, he said.
Police had yesterday resorted to lathicharge on Youth Congress workers after nearly 500 of them tried to cross barricades and enter Gaur's residence.
A police official had suffered injuries, while Congress sources said a number of party workers were hurt in the police action.