I don't really consider a building to have reached ground level until the ground level slab is poured.
In terms of time to top off, one is often looking at one month per podium level, and one week per residential level to complete a building. That said, it looks like the podium levels here have some repetitive elements, so likely not as long as one month for each of them.
You're probably looking at somewhere around February or March next year for it to be topped off.
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