A 34-year-old woman and her teenage daughter, who went missing under mysterious circumstances nearly a month ago, are yet to be traced by the police.According to official sources, Rani Verma (34) and her daughter Rajni (16) had left home on April 22 to work as domestic helps but never returned. Since then, there has been no clue about their whereabouts.Police officials are groping in dark in this regard.Investigating Officer Manjeet Singh said the mother-daughter duo had disappeared under mysterious circumstances and despite sustained efforts, the police had failed to trace them.He said raids and inquiries were conducted at the houses of relatives and other suspected locations, but all efforts proved futile. The police have now issued posters of the missing duo to trace them.