21. Tirupathi

Indian National Congress held the seat; the winning margin narrowed from 7.0% to 1.2%.

• Won on a lower shareIts own vote share fell 7.9% — it held because the rest of the vote was more divided.
• Vote fragmentedThe top two took only 75.8% between them, down from 85.7% — the field split more ways.

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