The number of dengue cases in the national capital has shot up from 1,355 Monday to 1,729 Thursday.
There have also been three confirmed deaths and seven suspected deaths, as per an official Friday.
"There has been a total of 1,729 cases and three have died from the vector-borne disease," said municipal health officer N.K. Yadav.
Of the total cases, 1,698 patients are from Delhi and 31 belong to adjoining states.
The north, south and east corporations reported 837, 408 and 368 cases, respectively.
The victims who have succumbed to the virus and been confirmed by municipal authorities are Phool Singh, 47 of west Delhi's Ashok Nagar, Priyanka Shankar, 21 of north Delhi's Pratap Nagar and Priya Jha, 6 of south Delhi's Okhla.