12. Daporijo

Indian National Congress held the seat; the winning margin narrowed from 16.4% to 0.2%.

• Won on a lower shareIts own vote share fell 13.1% — it held because the rest of the vote was more divided.
• New challengerBharatiya Janata Party (BJP) finished second with 44.8% — it did not contest here in 1980.
• Vote fragmentedThe top two took only 89.7% between them, down from 99.7% — the field split more ways.

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