In a review meeting with top officials on Thursday, Delhi Lieutenant Governor V K Saxena said next seven days would be crucial for the preparedness for the mega event on September 9-10, Raj Niwas officials said

The LG was assured by the officials during the meeting that foolproof security arrangements were put in place to deal with any kind of threat -- terror, nuclear, biological, chemical -- as well as anything arising out of the general law and order situation, officials said

The LG was informed that work has already commenced for installation of G-20 logos and flags of all participating countries on different streets and roads beginning from Palam Technical Area, hotels and Summit venue

Eighteen locations have been identified and two more are likely to be added for the purpose and 43 flags, including those of some international bodies, would be installed

By the next week, signages on roads and streets will be installed. Police have also started booking those involved in defacing of public property. Steps are also being taken to ensure that stray cattle and street dogs are suitably handled and the police along with civic bodies are carrying out the task, the LG was informed by the officials in the meeting