Seventeen-year-old Diksha who was found hanging at her house at Panjpeer Nagar here recently was allegedly killed by her mother and the latter’s paramour whom she befriended on Facebook.Narendra Bhargav, SSP, said they had arrested the accused, Manju Kamboj (37) and Vijay alias Sonu Rajput of Rewari, under Sections 302, 201 and 34 of the IPC.Sources said the two had been living together since January. About two months ago, Diksha objected to their relationship. Vijay later developed relationship with Diksha and promised to marry her. The development led to a conflict between Manju and her daughter.The sources said when Diksha threatened to end her life, Manju asked her to pen a suicide note and blame her grandparents for not giving them a share in the property. A few days later, Manju allegedly strangled her and with the help of Vijay she hung the body with a ceiling fan.The police had booked Diksha’s grandparents for abetment of suicide under Section 306 of the IPC. However on interrogation, Vijay unfolded the mystery.