New Delhi, July 10 -- The Supreme Court on Thursday came down heavily on civic authorities over rampant unauthorised constructions across Delhi-NCR, ordering an independent audit of vulnerable areas, summoning top municipal officials and warning that it would "attach personal responsibility" on officers who failed to act against illegal buildings despite repeated judicial directions. A bench of justices Ahsanuddin Amanullah and R Mahadevan said it was "particularly bothered" by the conduct of the Municipal Corporation of Delhi (MCD), observing that despite its May 20 directions highlighting dangerous unauthorised constructions in areas such as Lajpat Nagar and Sarojini Nagar, authorities had done little beyond issuing notices to violators. "We hoped the officers will take action...but now I will pass orders and it will pinch a lot of people. We will attach personal responsibility on the officers and will speak in black and white," remarked the bench during the hearing. The court directed the personal appearance of the MCD commissioner and the vice-chairman of the Gurugram Metropolitan Development Authority (GMDA) after taking note of a July 7 Hindustan Times report that found nearly 93% of establishments inspected in Gurugram's ongoing fire safety drive were deficient in mandatory fire safety measures. The officials have been asked to explain the concrete steps taken in compliance with the court's May 20 order. The bench also constituted an expert inspection team comprising two senior professors from IIT Delhi, two draftsmen from the institute, MCD officials and court-appointed amicus curiae senior advocate Ajit Kumar Sinha to carry out on-ground inspections of Malviya Nagar, Saket and Lajpat Nagar in Delhi. A similar exercise has been ordered in Lucknow's Aliganj area....