The Mumbai police's Special Investigation Team (SIT) has recovered a cutter that was allegedly used by the batchmate of IIT Bombay student Darshan Solanki to threaten the latter, an official said on Wednesday.

The SIT arrested Solanki's batchmate Arman Khatri three days back in connection with the alleged abetment of his suicide. Khatri and Solanki stayed on the same floor of a hostel at the Indian Institute of Technology (IIT) Bombay located in suburban Powai.