The Lucknow Development Authority (LDA) has issued a demolition notice for the Aliganj building where a fire claimed 15 lives a day ago, officials said on Tuesday, reported PTI. Authorities have also launched a crackdown against its own officials in connection with the illegal operation of the residential building as a commercial space.The three-storey building was issued a demolition order in 2016 over unauthorised construction but it was revoked less than two months later.Read more: Lucknow fire tragedy: Four arrested; accused owners of building "We have once again issued a demolition notice over (construction) violations for the Aliganj building where the fire incident took place on Monday," LDA Vice Chairperson Prathamesh Kumar told PTI. "We have also initiated inquiry against officials for laxity and action will be taken against them," Kumar said. The process to identify such officials and their role in the negligence has begun. The massive fire broke out on Monday afternoon in the three-floor commercial building housing an animation centre, killing at least 15 people, mostly students, and injuring nine others.Read more: At least 15 people killed as fire engulfs commercial building housing coaching centre in Lucknow's AliganjThe building, located in Sector D of the upscale Aliganj Scheme locality, was originally allotted on July 11, 1980, to Vijay Kumar, son of Rameshwar Sahay, under a hire-purchase scheme through a lottery system.Following the execution of the agreement on November 4, 1980, possession of the property was handed over to the allottee.In 2005, the property was registered in the names of Vijay Kumar and his wife, Usha, through a sale deed. They subsequently sold the property to Virendra Pratap Shukla and Surendra Pratap Shukla on January 19, 2013.On August 7, 2014, the Lucknow Development Authority completed the mutation process in favour of Virendra and Surendra, according to the statement issued late on Monday night.The building, spread over approximately 1,992 square feet, received approval for a residential-use building plan on August 20, 2014, under the self-certification building plan scheme.However, unauthorised construction was later found on the premises. The Lucknow Development Authority subsequently registered a case against Virendra Pratap Shukla.Following an investigation, a demolition order was issued against the unauthorised construction on May 10, 2016.However, two months after the demolition order was issued, it was revoked on July 5, 2016, raising questions about the circumstances under which the decision was reversed, the statement said.The tragic fire left at least 15 dead, including students, and seven injured, officials said.Most of the victims were trapped on the second floor of the building, located on Usha Mehta Marg in Aliganj in north Lucknow, where students were attending classes at an animation centre. The source of the fire is yet to be ascertained.Eyewitnesses said several people jumped out of the building, which was completely gutted in the fire. The structure also housed a pet clinic.Fourteen fire tenders, including a hydraulic platform vehicle, were deployed to control the blaze reported at around 3 pm.