73. Madhepura

Rashtriya Janata Dal held the seat; the winning margin narrowed from 20.5% to 7.4%.

• Won on a lower shareIts own vote share fell 10.3% — it held because the rest of the vote was more divided.
• New challengerJanata Dal (United) (JDU) finished second with 31.8% — it did not contest here in 2015.
• Vote fragmentedThe top two took only 71.1% between them, down from 78.5% — the field split more ways.

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