Even before the entire Metro network in the city is up and running, miscreants have begun defacing its infrastructure. Illegal stickers on the pillars of under-construction metro lines is becoming a major menace for the Mumbai Metropolitan Region Development Authority (MMRDA) officials.

When mid-day visited the new link road along the Dahisar-D N Nagar Metro 2A corridor and the Western Highway road stretch of the Dahisar-Andheri East Metro 7, most of the piers were full of such advertisements. Posters of a mobile application here said 'Mumbaikar Thanekar Chal Unglikar' with pictures of a Modi-lookalike.