A signboard on Akbar Road in Lutyens' Delhi was defaced on Thursday by unidentified individuals protesting against the alleged vandalism of Maharana Pratap's statue at Kashmiri Gate ISBT. The signboard, under NDMC jurisdiction, was cleaned by civic authorities. An FIR will be filed after a probe, and police are reviewing CCTV footage to identify the culprits. Authorities have urged citizens to maintain peace.