66. Muzaffarpur

Indian National Congress held the seat; the winning margin widened from 11.7% to 21.9%.

• New challengerNCO (NCO) finished second with 38.6% — it did not contest here in 1967.
• Vote consolidatedThe top two candidates took 99.1% of the vote between them, up from 80.1% — a tighter two-way contest.
• TurnoutTurnout rose 8.1% to 66.6%.

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