77. Jamunamukh

Indian National Congress held the seat; the winning margin widened from 23.2% to 34.1%.

• Won on a lower shareIts own vote share fell 5.0% — it held because the rest of the vote was more divided.
• New challengerJS (JS) finished second with 16.4% — it did not contest here in 1957.
• Vote fragmentedThe top two took only 67.0% between them, down from 87.9% — the field split more ways.

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