The order was issued by Education Minister Prof C Ravindranath on the basis of the report filed by General Education Secretary Usha Titus, recommending a detailed investigation into the matter.
Titus had sought a probe into the alleged nexus between the teacher who had set the SSLC question paper and a private institution in Malappuram.
The mathematics examination held on March 20 was cancelled after similarities were found between questions in the examination paper and those in the model question paper of a private institution. The re-examination of the Mathematics was held on March 30.