LUDHIANA: Focal Point police on Saturday arrested a factory worker — Arjun Kumar (20) of Mangli Neechi — and his mother Manju Devi, for the murder of his wife Kareena (19) by strangulation, after he got irritated with her demand to teach her to drive a scooter.In her police complaint, Kareena’s aunt Chanda Devi said Kareena was her sister Basanti Devi’s daughter. who had been living with her since childhood. She said Kareena had married Arjun after a love affair about one-and-a-half years ago, but the couple would often fight with each other. She said Manju was not happy with the marriage of her son to Kareena, and alleged that after some planning, both mother and son strangulated her niece to death.Cops said the post-mortem report revealed Kareena was murdered, after which Focal Point police registered a murder case against both the accused. They added that Manju Devi and Kareena did not like each other from the beginning, because of which Kareena’s relationship with her husband also got strained. As per the complaint, they said Chanda Devi had bought a new scooter on August 28, and had invited Arjun and Kareena for a ride, after which Kareeena had started asking her husband to teach her driving, but he rejected the demand. They added that on August 29, Chanda came to know Kareena had died under mysterious circumstances, after which she informed the police.Cops said after murdering her, the accused tried to give it the shape of a suicide by hanging, and claimed the same before the police. They added that the post-mortem report revealed Kareena had not hanged herself, but was in fact strangulated to death. Police officials said the accused had confessed to having strangled Kareena on the night of night August 28/29, as she constantly kept asking her husband to teach her driving the two-wheeler.Investigating officer (IO) of the case, assistant sub-inspector (ASI) Balvir Singh said on August 25, before she was strangled to death, she had attempted suicide by hanging herself, but was saved by her husband. He added that the accused were arrested from Dhandari.