MUMBAI, Oct. 8 -- The civic body has asked citizens not to panic or assume there is an emergency if they hear sirens go off in South Mumbai on Thursday and Friday. The BMC will be testing prototype siren equipment at the Old Secretariat in the Fort area and at the Civil Defence College near Cross Maidan on these days. The sirens will be sounded during the scheduled testing. The prototype siren equipment has been developed by a team from the Centre for Development of Telematics (C-DOT) under the guidance of the Director General, Civil Defence. The BMC said the testing has been pre-scheduled and there is no actual emergency. It has urged citizens not to believe or circulate unauthorised information or rumours regarding the siren tests....