233. Arwal

Communist Party of India held the seat; the winning margin narrowed from 39.4% to 6.4%.

• Won on a lower shareIts own vote share fell 26.3% — it held because the rest of the vote was more divided.
• New challengerBharatiya Jana Sangh (BJS) finished second with 25.3% — it did not contest here in 1967.
• Vote fragmentedThe top two took only 57.1% between them, down from 76.7% — the field split more ways.

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