New Delhi:Delhi Metro commuters are likely to face longer waiting times at stations as security measures are set to be intensified ahead of Independence Day. In a major decision, the Central Industrial Security Force (CISF) will begin enhanced security screening across all Delhi Metro stations from August 9 as part of the preparations for the August 15 celebrations. Metro services were recently affectedThis is not the first time Delhi Metro operations have been impacted in recent weeks. Towards the end of July, services at several Metro stations were disrupted due to protests at Jantar Mantar. Also Read:Viral video of man allegedly urinating inside Delhi Metro lift sparks outrage, police respond | Watch