361. Chennai South

Dravida Munnetra Kazhagam held the seat; the winning margin narrowed from 23.3% to 20.6%.

• Won on a lower shareIts own vote share fell 3.2% — it held because the rest of the vote was more divided.
• New challengerBharatiya Janata Party (BJP) finished second with 26.4% — it did not contest here in 2019.

Written from the constituency figures by a fixed set of rules — no language model.