New Delhi, Oct. 14 -- The Municipal Corporation of Delhi (MCD) has directed zonal authorities to mandatorily seek structural safety certificates from over 2,400 paying guest (PG) accommodations across the city in the next 15 days, senior civic officials said. A senior municipal official said that in the second phase of the exercise, following a survey in the first phase, directions have been issued to all of its 12 zones to seek structural safety certificates for 2,453 such buildings. "The exercise found four visibly dangerous buildings and vacation notices have been issued to all of these four structures. Since most of these buildings lack approved building plans, we have asked them to get structural safety certificates. There should at le...