NEW DELHI: The Supreme Court on Thursday reprimanded municipal authorities in Delhi, Gurugram, Lucknow, Patna and Tamil Nadu over illegal constructions and sought reports on the action taken to demolish or shut down unsafe buildings that pose a serious risk to public safety.A bench of Justices Ahsanuddin Amanullah and R Mahadevan took note of the recent building collapse in Delhi's Saket and fire incidents in Malviya Nagar and Lucknow's Aliganj. It directed the constitution of a special team comprising two senior professors from IIT Delhi and two draftsmen to conduct a time-bound ground survey of Saket, Malviya Nagar and Lajpat Nagar.The officials concerned have also been directed to remain physically present before the court on the next date of hearing on August 4."We make it clear that t