A woman and her mother-in-law were stabbed to death by unknown assailants in Delhi`s Shahdara area, police said on Tuesday. A senior police official said the victims were identified as Dolly Roy and her mother-in-law Vimla Devi.

"They were at home when the incident happened. Vimla has two sons, both were not in Delhi. This morning when the two sons reached Delhi, they found the door closed from inside. They opened it with another key. When they went inside they discovered the bodies lying in pool of blood," said the official.