Govind Siddapur collapsed while trying to board a bus in Mudhol to report for poll duty. He was 35.
Govind Siddapur was taken to hospital where he was declared brought dead.
Doctors said he had suffered a heart attack.
He was a teacher in the Government Primary School near Jamkhandi in Bagalkot district. He was posted to a booth in Maigoor of Bagalkot district.