70. Teonthar

Indian National Congress held the seat; the winning margin widened from 1.5% to 11.9%.

• Won on a lower shareIts own vote share fell 6.7% — it held because the rest of the vote was more divided.
• New challengerBharatiya Janata Party (BJP) finished second with 20.2% — it did not contest here in 1977.
• Vote fragmentedThe top two took only 52.4% between them, down from 76.1% — the field split more ways.

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