BSF today said a head constable has tested positive for COVID 19 and two floors of BSF Force Headquarters at CGO complex in New Delhi have been closed as precaution.<br />''<br />''The head constable last attended office on Friday.<br />''<br />''All persons who came in his contact have been identified and quarantined. They will also be tested for COVID 19.<br />''<br />''Prior to the detection of the case, the Headquarter was closed early by 4 in the evening on Friday as special precautionary measure. It was closed on Saturday and Sunday and no staff other than the security personnel and the control room members were allowed.<br />''<br />''The disinfection will be done again today afternoon. Identification of secondary and tertiary contacts as per protocol is being carried out.<br />