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Assembly constituency 174 · Bihar

Islampur is assembly constituency number 174 in Bihar, in Nalanda district, and one of the segments of the Nalanda Lok Sabha seat. In the 2025 election Ruhail Ranjan of the Janata Dal (United) won with 53.5% of the vote, 32,239 votes ahead of Rakesh Kumar Raushan (RJD).

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Islampur · 2025AC 174
  1. 01
    Ruhail Ranjan
    JD(U)
    1,00,487
    53.55%
  2. 02
    Rakesh Kumar Raushan
    RJD
    68,248
    36.37%
  3. 03
    Tanuja Kumari
    JNSRJP
    4,779
    2.55%
  4. 04
    Sitaram Singh
    Independent
    3,416
    1.82%
  5. 05
    Bipin Mistri
    BSP
    2,717
    1.45%
  6. 8 other candidates · 3,485 votesNOTA · 4,532 (2.41%)

Margin 32,239 votes · 17.18% of valid votes

3,03,226
Registered electors
2025 election
62.0%
Turnout
+6.1 pts vs 2020
32,239
Victory margin
17.2% of valid votes
Nov 2025 · candidate-wise result

All 13 candidates, ranked by votes. Vote share is of the 1,87,664 valid votes, NOTA included.

Islampur 2025 assembly election result
#CandidatePartyVotesVote share
1Ruhail RanjanMale · 44 yrsJD(U)1,00,487
53.55%
2Rakesh Kumar RaushanMale · 55 yrsRJD68,248
36.37%
3Tanuja KumariFemale · 46 yrsJNSRJP4,779
2.55%
—NOTANOTA4,532
2.41%
4Sitaram SinghMale · 63 yrsIndependent3,416
1.82%
5Bipin MistriMale · 53 yrsBSP2,717
1.45%
6Ranjeet KumarMale · 48 yrsIndependent967
0.52%
7Mitu KumariFemale · 34 yrsIndependent581
0.31%
Show 6 more candidates
8Manoj JamadarMale · 40 yrsIndependent557
0.30%
9Kumar Hari Charan Singh YadavMale · 55 yrsBMF438
0.23%
10Ajay Kumar SinhaMale · 39 yrsIndependent300
0.16%
11Sugouli PrasadMale · 60 yrsPPID287
0.15%
12Vikash Kumar GaurabMale · 39 yrsLOHJD197
0.10%
13Dinkar KumarMale · 37 yrs · SCRSLAP158
0.08%
Past results

The seat changed hands: RJD won in 2020, JD(U) in 2025.

0%20%40%60%2010201520202025JD(U) 53.5%RJD 36.4%JNSRJP 2.5%LJP 5.3%
Vote share, % of valid votes. Hover or focus a year for exact values.
2025Ruhail RanjanJD(U) · 53.5% · margin 32,239Turnout62.0%
2020Rakesh Kumar RoushanRJD · 41.6% · margin 3,698Turnout55.9%
2015Chandrasen PrasadJD(U) · 46.4% · margin 22,602Turnout53.1%
2010Rajib RanjanJD(U) · 49.2% · margin 23,808Turnout48.1%

General elections since the 2008 delimitation. Results from before the current boundaries are not compared.

Islampur result 2020

Islampur 2020 result
#CandidatePartyVotesVote share
1Rakesh Kumar RoushanRJD68,088
41.65%
2Chandra Sen PrasadJD(U)64,390
39.39%
3Naresh Prasad SinghLJP8,597
5.26%
4Mahendra Singh YadavIndependent3,750
2.29%
5Bharat Prasad SinghRLSP3,719
2.27%
6Meena DeviIndependent3,359
2.05%
Show 12 more candidates
7Shatrudhan Prasad MalakarSANKISVP3,292
2.01%
8Sameer KumarIndependent1,884
1.15%
—NOTANOTA1,044
0.64%
9Siyasharan Prasad SinghNCP984
0.60%
10Ajay KumarIndependent843
0.52%
11Vikash Kumar GauravNJP827
0.51%
12Munna Kumar KeshariJD(S)682
0.42%
13Dayanand PrasadTPLRSP596
0.36%
14Ajit KumarRTJPS461
0.28%
15Madan Kumarpms398
0.24%
16Pankaj KumarBBMP320
0.20%
17Kumar Pankaj PrasadBIP244
0.15%

Islampur result 2015

Islampur 2015 result
#CandidatePartyVotesVote share
1Chandrasen PrasadJD(U)66,587
46.40%
2Birendra GopeBJP43,985
30.65%
3Dharmendra KumarSP4,898
3.41%
4Chandeshwar Prasad VermaIndependent4,781
3.33%
5Jayant PrabhakarIndependent3,139
2.19%
6Umesh KumarCPI(ML)(L)3,014
2.10%
Show 17 more candidates
7Kunal PaswanIndependent2,309
1.61%
8Aslam HusainIndependent1,981
1.38%
9Sharda SinhaCPI1,964
1.37%
10Raj Kumar MochiBSP1,819
1.27%
—NOTANOTA1,494
1.04%
11Rajmanti DeviIndependent1,359
0.95%
12Sunil KumarAAMJP1,048
0.73%
13Dinkar KumarIndependent957
0.67%
14Sarvoday BrahamachariIndependent560
0.39%
15Sudama PaswanIndependent552
0.38%
16Sarita DeviIndependent533
0.37%
17Ramjee SinghRSADP494
0.34%
18Rana Digvijay SinghBYPD475
0.33%
19Madan KumarPMS428
0.30%
20Abdul RaquibSABJAN395
0.28%
21Kumar Hari Charan Singh YadavBMF394
0.27%
22Yogendra PrasadBIP334
0.23%

Islampur result 2010

Islampur 2010 result
#CandidatePartyVotesVote share
1Rajib RanjanJD(U)56,332
49.24%
2Virendra GopRJD32,524
28.43%
3Rakesh Kumar RousanCPI8,369
7.32%
4Alivendra KumarBSP6,021
5.26%
5Vivek SinhaINC4,581
4.00%
6Ranjeet KumarIndependent2,326
2.03%
Show 4 more candidates
7Munna AhmadSP1,249
1.09%
8Om Prakash SinghJD(S)1,244
1.09%
9Prakash ChandraIndependent1,056
0.92%
10Hemaun Kesar Urf LadunNCP706
0.62%
Map

Islampur outlined in orange among the other Bihar seats, coloured by the party that won each in 2025. Click any seat to open its page.

Other seats in Nalanda district

Boundaries are approximate (DataMeet, from ECI polling-station maps) and are for orientation only.

BJPJD(U)RJDLJPRVINCAIMIMOthers
Lok Sabha 2024 in this segment

Islampur is one of the assembly segments of Nalanda. These are the EVM votes counted in this segment for the leading Nalanda candidates.

  • Kaushalendra KumarJD(U)73,848 47.0%
  • Dr. Sandeep SauravCPI(ML)(L)60,986 38.8%
  • Sudhir KumarSANKISVP3,235 2.1%
  • Shashi KumarSMJSKTP2,607 1.7%
  • Surendra PrasadALHP2,480 1.6%

In the assembly election JD(U) won this seat. In the Lok Sabha vote, JD(U) led here by 12,862 EVM votes.

Open Nalanda Lok Sabha result
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FAQ

Answers use the official Election Commission of India results for Islampur.

Who won the Islampur assembly seat in 2025?

Ruhail Ranjan of the Janata Dal (United) (JD(U)) won Islampur in the 2025 Bihar assembly election with 1,00,487 votes, which was 53.55% of the valid votes polled.

What was the victory margin in Islampur?

The margin was 32,239 votes (17.18% of valid votes). The runner-up was Rakesh Kumar Raushan of the Rashtriya Janata Dal with 68,248 votes.

What was the voter turnout in Islampur in 2025?

Turnout was 61.98%: 1,87,926 of 3,03,226 registered electors voted, across 390 polling stations. That is 6.1 points higher than in 2020.

Which Lok Sabha constituency is Islampur part of?

Islampur is an assembly segment of the Nalanda Lok Sabha constituency in Bihar. In the 2024 Lok Sabha election, Kaushalendra Kumar got the most EVM votes in this segment.

Is Islampur a reserved constituency?

No. Islampur is a general (unreserved) seat, so any eligible candidate can contest.

When is the next assembly election in Islampur?

The Bihar assembly elected in 2025 completes its five-year term in 2030, so the next general election is due by then unless the assembly is dissolved early. The Election Commission of India announces the exact schedule.

Source: Election Commission of India, statistical reports for the Bihar assembly elections of 2025 and 2020 and 2015 and 2010 (2025 report) — detailed results and constituency data summary. Lok Sabha figures: ECI 2024 report 34, assembly segment details. Vote share is of valid votes including NOTA. Party names as listed by ECI. Candidate names are shown as filed; spelling follows ECI.

Related data

Each page below is built from an official source and credited on the page.