The latest developments related to earthquake in Delhi today involve emergency drills conducted at 55 sites in the city. These drills are aimed at checking the earthquake readiness of Delhi. The drills were conducted to assess the preparedness of the city in case of an earthquake. The exact details of the drills, such as the time of the drills, the locations of the drills, and the participants involved, are not specified in the provided evidence. However, it is mentioned that the drills were conducted to check the earthquake readiness of Delhi. The purpose of the drills is to identify areas of improvement and to enhance the city’s preparedness for earthquakes. The drills were conducted at multiple sites across Delhi, with the goal of ensuring the city’s readiness in case of an earthquake.