353. Sidhpura

Indian National Congress held the seat; the winning margin narrowed from 2.4% to 0.2%.

• Won on a lower shareIts own vote share fell 11.5% — it held because the rest of the vote was more divided.
• New challengerHMS (HMS) finished second with 20.6% — it did not contest here in 1957.
• Vote fragmentedThe top two took only 41.4% between them, down from 62.2% — the field split more ways.

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