India, Dec. 9 -- Disturbing details have surfaced in the murder of engineer Surya Pratap Singh in Uttar Pradesh's Lucknow, after his live-in partner confessed to killing him, alleging months of confinement, surveillance, abuse, and a final trigger involving her daughters.

As reported by HT earlier, the 33-year-old was found with his throat slit inside his Green City home in Lucknow on December 7. Police say, 49-year-old Ratna Devi acted after enduring months of abuse and after he allegedly assaulted her daughter on the night of the murder.

Investigators say the case reflects a troubling mix of alleged child abuse, controlling behaviour, a breakdown of domestic relations, and an ongoing property dispute that had intensified in recent mon...