381. Karur

Indian National Congress held the seat; the winning margin narrowed from 38.1% to 14.7%.

• Won on a lower shareIts own vote share fell 15.8% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 79.8% between them, down from 88.0% — the field split more ways.

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