The Deccan and the South
Peninsular India, which was never governed from the north for long and spent most of its history under dynasties the north barely recorded — a Tamil empire that sent fleets to Sumatra, a city on the Tungabhadra that Persian visitors compared to Rome, and a sultanate that broke into five.
The line below is a time axis. Position on it is date, so concurrency is visible: concurrent polities sit side by side rather than in sequence.
5 sourced edges run between this region and another, to Mughal Empire, Kanva Empire, Delhi Sultanate and Sultanate of Khandesh. Those are not drawn on this line — a thread that crossed regions would assert a sequence nobody cited — but they are on each polity’s own page.