Ustad Shaadi Lal Sharma is angry. A lad, 12 roofs away from his home in Old Delhi's Sitaram Bazaar, has just captured one of his pigeons. Sharma hurls expletives at the fellow who feigns ignorance. The 60-year-old ustad whips out his mobile phone, a Nokia 1100, and asks the would-be thief to let the bird go. By now, groups of men have emerged on both roofs. Being the veteran, ustadji has the last word and the pigeon is let off. It returns to its home flock of rangeen kabootar that are part of Sharma's collection of around 300 pigeons of different colours - one of the biggest in the Walled City.