The Nagpur police commissioner on Tuesday said a Karnataka jail inmate who is suspected to have made threat calls to Union minister Nitin Gadkari has denied his involvement in the case and cops will now record statements of five persons who were in touch with him on phone.

Investigations so far have revealed the alleged caller, Jayesh Pujari, is an inmate of the Hindalga jail in Belagavi and was sentenced to death by a court in a murder case in the past, the Karnataka police said on Sunday.