2. Bagaha

Indian National Congress held the seat; the winning margin narrowed from 37.7% to 12.6%.

• Won on a lower shareIts own vote share fell 19.0% — it held because the rest of the vote was more divided.
• New challengerLKD (LKD) finished second with 27.8% — it did not contest here in 1980.
• Vote fragmentedThe top two took only 68.3% between them, down from 81.3% — the field split more ways.

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