The police believe two more question papers may have been leaked.
On April 4, the economics paper of TYBcom was leaked and two students and two Kalyan college officials were arrested.
The Mumbai police's crime branch that is investigating the matter went through the CCTV footage of KM Agarwal College in Kalyan. It showed Rajkumar Mishra, an IT coordinator with the college, handing over printouts believed to be question papers to his associate Rajendra Borhade, a clerk with the same college. Both are now in police custody.
"CCTV footage (April 2, 3 and 4) shows Mishra handing over some printouts to Borhade. We suspect these printouts were of question papers. On April 2 and 3 there were exams. We suspect these question papers too must have been leaked by these men," a crime branch officer said.
The police on Tuesday recorded the statement of Anita Manna, principal of KM Agarwal College. The police said the college did not follow basic standard operation procedure. "Mishra has told us that he was intending to leak the other papers as well. Borhade was paid Rs3,000 by students for leaking a paper. Half the money was paid to Mishra," the officer said.
Apart from Mishra and Borhade, the police have arrested students Vishal More and Pratik Mehta.