In the first three days of the survey of dangerous buildings, which began on Sunday, 8798 properties were surveyed in the zone and ongoing unauthorised constructions were observed in 124 properties, the North Delhi Municipal Corporation said.
The notices were issued to them on the spot, and police was also endorsed a copy of the same to keep a vigil. The properties which were issued notices are situated in H-16, E-16, I-16 of Bapa Nagar, Tank Road, Dev Nagar and Khalsa Nagar, among others.