Building departments of the respective zones carried out the action with the help of the local police.
In Rohini zone, where 28 properties were targeted, entire floors were destroyed because they had been constructed without permissions.
In Shahdara South zone, where 33 properties were targeted, six of the buildings were sealed.
The rest lost their illegal partitions, extensions and walls as they were built either by encroaching on public land or without permissions. These buildings were located at Ramesh Park, Mandawali, Pandav Nagar, Patparganj, Laxmi Nagar and Madhu Vihar among others.
According to corporation officials, the drives will be intensified in the coming days.