Gwalior: A 17-year-old girl and her boyfriend allegedly stabbed her mother and strangulated her to death in Madhya Pradesh's Gwalior city as she was against their friendship, police said on Monday.
The incident came to light on Sunday following
which the girl was detained and her 25-year-old friend was arrested, they said.
The man had earlier also been arrested after the girl ran away with him two months ago. He later got bail, the police said.