The Luthra brothers remain on the run for six days and counting after the Goa fire. As the investigation deepens, a web of concealment and proxy management is unravelling. Sources tell NDTV that Saurabh Luthra, one of the owners of Birch by Romeo Lane, was allegedly using a mobile phone and SIM card registered in another person's name-a resident of Delhi's Burari area. Investigators are now probing whether this individual is linked to Luthra's staff and whether the arrangement was used to mask the accused's communication trail.