What are the key technological advancements showcased at the G-20 venue in India

Unfortunately, as an AI language model, my responses are generated based on pre-existing knowledge. I do not have real-time information about specific events or exhibitions, such as those held at the G-20 venue in India. To get the most accurate and up-to-date information about the key technological advancements showcased at the G-20 venue or any other event, I recommend checking official event websites, news sources, or contacting the event organizers directly. They will be able to provide you with the specific details you are looking for. However, I can provide general information about technological advancements if you have any specific topics or areas of interest.