A 22-year-old man has been arrested for allegedly stabbing and injuring his girlfriend and her mother over a petty argument at their house in Maharashtra's Thane city, police said on Friday.

The incident took place around 9.45 am on Thursday when the 18-year-old victim was in her house in Ghodbunder Road locality in Thane with the accused Suresh Ramdas Wadekar and her mother, an official said.