Wife of A committed suicide after 2 years of her marriage and before her death she was subjected to…

Section 80 of the Bharatiya Nyaya Sanhita, 2023 (formerly section 304B IPC) makes it dowry death where a woman dies otherwise than under normal circumstances, including by suicide, within seven years of marriage and it is shown that soon before her death she was subjected to cruelty or harassment by her husband or his relatives in connection with a demand for dowry. On these facts the offence is "under Section 80 BNS". Sections 103 and 105 (murder and culpable homicide not amounting to murder) need an intention or knowledge of causing death that is not shown here, and section 106 covers death caused by a rash or negligent act.