Answer : 1. "ग्वालियर"
Explanation :

‘International Aerospace Conference: Moving Towards Inclusive Global Value Chains’ was jointly organized by the Ministry of Civil Aviation and Confederation of Indian Industry (CII) in Gwalior, Madhya Pradesh. It is a G20 initiative in the aerospace sector under the G20 and B20 priority, which focuses on developing inclusive global value chains for global trade and investment and aims to promote and strengthen trade and investment among G20 countries .