The covers have been smuggled out of Chandigarh in the past and subsequently sold at international. Two iron manhole covers bearing an impression of a map of Chandigarh and designed by French-Swiss architect Le Corbusier were stolen in sectors 3 and 10, police said on Saturday after registering. The Tribune, now published from Chandigarh, started publication on February 2, 1881, in Lahore (now in Pakistan).