421. Roorkee

Indian National Congress held the seat; the winning margin narrowed from 7.2% to 0.9%.

• Won on a lower shareIts own vote share fell 6.6% — it held because the rest of the vote was more divided.
• New challengerBhartiya Krishak Dal (BKD) finished second with 33.1% — it did not contest here in 1967.
• Vote fragmentedThe top two took only 67.0% between them, down from 73.8% — the field split more ways.

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