The girl called her 19-year-old boyfriend at home in Shankar Nagar locality of the city on July 2 and the boy allegedly stabbed the girl's mother, Gurwinder Kaur Birdi (40), with a knife in her abdomen and later strangled her to death, Badrakali police station inspector C A Baravkar said.
Mumbai Roundup: 9 incidents that took place this week
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