Центральный телеграф
Soon after midnight police cars equipped with loud hailers were to be sent out to announce an immediate curfew in Colombo city limits. The Central Telegraph Office and other city telephone exchanges were to be taken over and put out of operation. Shortly after mid-night Police Headquarters and the CID office in fort were to be taken over. Newspaper office buildings of the Lake House and Times of Ceylon were to be taken over and publications to be stopped for several days. Signals Corps despatch riders, fully armed on motorcycles, were standing by from about 11pm at Torrington (Independence) Square to storm Radio Ceylon once the password 'Holdfast' was given. A special direct telephone line had been laid the previous day, from Army Headquarters at Lower Lake Road to the Echelon Barracks, for use by army personnel.