https://www.deccanherald.com/amp/story/india%2Fg20-media-centre-how-journalists-from-across-globe-worked-as-one-family-2680685

The theme of G20 has been depicted in the design of the working space too, with working zones linearly divided into segments named after Indian rivers -- Ganga, Yamuna, Brahmaputra, Krishna and Godavari on the ground floor and Narmada, Indus and Kaveri on the first floor.

So he literally means a table (or maybe "floor"?), presumably.