The vigilance department has issued notice to former Delhi Jal Board (DJB) CEO Udit Prakash Rai for allegedly demolishing a monument and building a new government accommodation. The department also sent show-cause notices to five DJB engineers allegedly involved in the incident. Rai, a 2007 batch IAS (AGMUT cadre) officer, allegedly demolished the "Pathan period" Mahal dating back to 1418.