The accused Maninder Singh repeatedly attacked Sarbjit Kaur with axe until she died. The victim was on her way back to home yesterday, they said.
He even made a video of himself near the body after committing the crime, police said.
The accused informed the police control room after the incident, Deputy Commissioner Police, Ludhiana, Dhruman Nimbley said.
He was arrested and a case was registered at police station Dehlon on the complaint of Lakhwinder Kaur, daughter of the deceased, he said.
Accused claimed that the victim was allegedly blackmailing him and his lover on this issue. Fed up with the alleged harassment, he decided to kill her, police said.