LUCKNOW, Jan. 24 -- An elderly school teacher was duped of her jewellery by two men posing as policemen in Vishal Khand area of Gomti Nagar on Wednesday. Police have registered a case regarding the matter and initiated investigation. Station house officer of Gomti Nagar Police station Triloki Singh said, "The incident occurred at around 7pm when one Chitra Mehrotra was returning to her home. As per her complaint two persons on a motorbike approached her posing as policemen and told her that they were looking for a chain snatcher in the area. They suggested that she must remove the gold chain she was wearing and keep it in her hand. Alarmed by their warning, the woman untied her necklace when one of them snatched the necklace and fled from there." The incident occurred close to a private school near the office of inspector general (Lucknow zone). Based on the complaint the police have started search for the accused....