New Delhi, Sept. 11 -- The Municipal Corporation of Delhi (MCD) has stepped up its enforcement action against unauthorised construction, dangerous buildings and violations of the city's planning and building regulations, carrying out 25 demolition drives across all 12 zones on Friday.

The civic body said four properties were also sealed, six show-cause notices were issued, and four demolition orders were passed during the day's operation.

The latest action comes a day after the MCD carried out a larger enforcement exercise, in which 41 properties were demolished, and another 61 were sealed for violations of the Master Plan of Delhi (MPD) and building bye-laws.

On Friday, enforcement action covered several parts of the capital. Demoliti...