However, the reason behind the extreme step is being ascertained, the police said.
The accused, Umesh, allegedly killed his wife Minakshi, 35, by slashing her neck at around 12 noon at his flat in Dwarka's Bindapur area. Later in the evening he surrendered before the police admitting the crime, the police said.
Minakshi's family members have alleged that the man used to torture her for dowry and the matter was reported to the police several times.
"A case has been registered and further investigation is underway," the police added.
Get the latest election news, live updates and election schedule for Lok Sabha Elections 2019 on ndtv.com/elections. Like us on Facebook or follow us on Twitter and Instagram for updates from each of the 543 parliamentary seats for the 2019 Indian general elections.