225. Ambasamudram

All India Anna Dravida Munnetra Kazhagam held the seat; the winning margin narrowed from 9.5% to 5.4%.

• Won on a lower shareIts own vote share fell 13.7% — it held because the rest of the vote was more divided.
• New challengerIndian National Congress (INC) finished second with 28.9% — it did not contest here in 2021.
• Vote fragmentedThe top two took only 63.3% between them, down from 86.4% — the field split more ways.

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