The highest single-day spike of 1,513 cases in the national capital was recorded on June 3.
In a bulletin, the Delhi health department said the death toll due to COVID-19 rose to 650 and the number of cases mounted to 25,004 on Thursday.
A total of 44 fatalities were reported on June 3, which took place between May 3 and June 3, the bulletin said.
Seventeen deaths took place on June 2, it added.
The bulletin, however, said the cumulative death figure refers to fatalities where the primary cause of death was found to be COVID-19, according to a report of the Death Audit Committee on the basis of the case-sheets received from various hospitals.
On Wednesday, the number of COVID-19 cases in the national capital stood at 23,645, including 606 deaths. KND RC