In a crackdown across Maharashtra, the Thane police arrested 18 people for allegedly leaking the Army recruitment question paper.
The raids were conducted in Nashik, Nagpur, Pune and the neighbouring state of Goa.
Police had received a tip-off that around 350 candidates were made available with the leaked question papers by coaching institutes late on Saturday night in exchange for Rs 2 lakh.
The Army has been informed about the case. Meanwhile the exam has been cancelled in six centres across the state.