Delhi Police described the 19-year-old accused in the killing of an IRS officer's daughter as a gambler, an addict, and someone who had accumulated debts he failed to repay.
The victim was strangled using a mobile phone charger, police said.
The accused was hired as a servant a year ago and was fired about a month and a half ago for frequently borrowing money.
He returned to the victim's residence after committing the crime, changed his trousers, and the motive is still under investigation.
Police also referred to a similar incident involving the accused in Alwar, where he was arrested.
Initial investigation shows he is into betting apps and also addicted to drugs, an officer said.
The accused was in Rajgarh on Tuesday night and allegedly molested a woman before travelling to Delhi.
