Results/Swing
Results
ECI results
Analysis · what changed
Who gained, who lost
Bihar, 2020 to 2025. 10 parties changed their seat count; 73 stood for the first time.
Biggest gain
+42seats
Janata Dal (united) · 43 → 85
Biggest loss
-50seats
Rashtriya Janata Dal · 75 → 25
Largest vote swing
+3.96pts
Janata Dal (united) · 15.65% → 19.61%
Wiped out
3
Held seats in 2020, none in 2025
Breakthroughs
0
First seats since 2020
[02]Seats gained and lost
Rashtriya Janata Dal
-5075 → 25
Janata Dal (united)
+4243 → 85
Bharatiya Janta Party
+1574 → 89
Indian National Congr…
-1319 → 6
Communist Party of In…
-1012 → 2
Vikassheel Insaan Par…
-44 → 0
Communist Party of In…
-22 → 0
Hindustani Awam Morch…
+14 → 5
Communist Party of In…
-12 → 1
Independent
-11 → 0
[03]Vote-share swing
Janata Dal (united)
+3.96 pts15.65% → 19.61%
Independent
-3.69 pts8.79% → 5.1%
Rashtriya Lok Samta P…
-1.79 pts1.8% → 0.0%
Indian National Congr…
-0.77 pts9.64% → 8.87%
Bharatiya Janta Party
+0.66 pts19.8% → 20.45%
All India Majlis-e-it…
+0.63 pts1.26% → 1.89%
Communist Party of In…
-0.33 pts3.22% → 2.89%
Hindustani Awam Morch…
+0.29 pts0.91% → 1.19%
The Plurals Party
-0.25 pts0.3% → 0.05%
Nationalist Congress…
-0.2 pts0.23% → 0.03%
Aazad Samaj Party (ka…
+0.19 pts0.01% → 0.2%
Vikassheel Insaan Par…
-0.15 pts1.54% → 1.4%
[04]Wipeouts and breakthroughs
Vikassheel Insaan Par…
−4lost all 4
Communist Party of In…
−2lost all 2
Independent
−1lost all 1
[05]Standing for the first time
Lok Janshakti Party(r…
2819 won · 5.07%
Rashtriya Lok Morcha
64 won · 1.08%
Indian Inclusive Party
31 won · 0.38%
Jan Suraaj Party
2380 won · 3.4%
Aam Aadmi Party
830 won · 0.31%
Janshakti Janta Dal
450 won · 0.28%
Rashtriya Lok Janshak…
360 won · 0.17%
Aam Janta Pragati Par…
90 won · 0.02%
Vikas Vanchit Insan P…
70 won · 0.02%
Bhagidari Party(p)
70 won · 0.03%
[06]Computed insights
-
Janata Dal (united) gained 42 seats while Rashtriya Janata Dal lost 50 — the two ends of the 2020–2025 shift.
43→85 and 75→25 -
Rashtriya Janata Dal moved -50 seats on a vote swing of just -0.08 pts — first-past-the-post amplifies small shifts.
seat delta -50 against -0.08 points -
3 parties lost every seat held in 2020; the largest was Vikassheel Insaan Party, down from 4.
parties with seats in 2020 and none in 2025 -
Lok Janshakti Party(ram Vilas) did not contest in 2020 and won 19 seats on debut, from 28 candidates.
no 2020 row; 19/28 in 2025