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Assembly constituency 143 · West Bengal

Diamond Harbour is assembly constituency number 143 in West Bengal, in South 24 Parganas district, and one of the segments of the Diamond Harbour Lok Sabha seat. In the 2026 election Panna Lal Halder of the All India Trinamool Congress won with 51.4% of the vote, 31,266 votes ahead of Dipak Kumar Halder (BJP).

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Diamond Harbour · 2026AC 143
  1. 01
    Panna Lal Halder
    TMC
    1,19,320
    51.38%
  2. 02
    Dipak Kumar Halder
    BJP
    88,054
    37.92%
  3. 03
    Samar Naiya
    CPI(M)
    17,594
    7.58%
  4. 04
    Goutam Bhattacharya
    INC
    1,756
    0.76%
  5. 05
    Pannalal Halder
    Independent
    1,410
    0.61%
  6. 5 other candidates · 2,725 votesNOTA · 1,379 (0.59%)

Margin 31,266 votes · 13.46% of valid votes

2,45,251
Registered electors
2026 election
94.8%
Turnout
+6.4 pts vs 2021
31,266
Victory margin
13.5% of valid votes
Apr 2026 · candidate-wise result

All 10 candidates, ranked by votes. Vote share is of the 2,32,238 valid votes, NOTA included.

Diamond Harbour 2026 assembly election result
#CandidatePartyVotesVote share
1Panna Lal HalderMale · 75 yrsTMC1,19,320
51.38%
2Dipak Kumar HalderMale · 60 yrsBJP88,054
37.92%
3Samar NaiyaMale · 70 yrsCPI(M)17,594
7.58%
4Goutam BhattacharyaMale · 49 yrsINC1,756
0.76%
5Pannalal HalderMale · 43 yrs · SCIndependent1,410
0.61%
—NOTANOTA1,379
0.59%
6Bikash Chandra MondalMale · 60 yrsBSP1,103
0.47%
7Humayun ShahMale · 46 yrsIndependent534
0.23%
Show 3 more candidates
8Dipak HalderMale · 40 yrs · SCIndependent403
0.17%
9Yeamin LaskarMale · 29 yrsAJUP373
0.16%
10Goutam Kumar HalderMale · 60 yrsIndependent312
0.13%
Past results

AITC held the seat: it also won in 2021.

0%20%40%60%2011201620212026TMC 51.4%BJP 37.9%CPI(M) 7.6%
Vote share, % of valid votes. Hover or focus a year for exact values.
2026Panna Lal HalderTMC · 51.4% · margin 31,266Turnout94.8%
2021Pannalal HalderTMC · 43.7% · margin 16,996Turnout88.4%
2016Dipak Kumar HalderTMC · 48.6% · margin 15,037Turnout88.9%
2011Dipak Kumar HalderTMC · 53.4% · margin 20,774Turnout85.4%

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

Diamond Harbour result 2021

Diamond Harbour 2021 result
#CandidatePartyVotesVote share
1Pannalal HalderTMC98,478
43.69%
2Dipak Kumar HalderBJP81,482
36.15%
3Pratik Ur RahamanCPI(M)38,719
17.18%
4Safiulla KhanIndependent1,585
0.70%
—NOTANOTA1,449
0.64%
5Golam Ali SekhBSP1,088
0.48%
Show 6 more candidates
6Swapan MondalIndependent800
0.35%
7Latab Uddin MollaIndependent754
0.33%
8Monarama HalderSUCI469
0.21%
9Biswajit SardarIndependent234
0.10%
10Sachindra Nath HalderRPI(A)174
0.08%
11Kishor Kumar MondalIndependent165
0.07%

Diamond Harbour result 2016

Diamond Harbour 2016 result
#CandidatePartyVotesVote share
1Dipak Kumar HalderTMC96,833
48.58%
2Dr. Abul HasnatCPI(M)81,796
41.03%
3Balaram HalderBJP14,614
7.33%
—NOTANOTA2,109
1.06%
4Swapan MondalIndependent1,539
0.77%
5Rokeya BibiBSP553
0.28%
Show 5 more candidates
6Sujit SardarIndependent406
0.20%
7Arun Kumar PurkaitIndependent406
0.20%
8Uttam MannaIndependent399
0.20%
9Monirul IslamSUCI378
0.19%
10Kurban Sk.IUC313
0.16%

Diamond Harbour result 2011

Diamond Harbour 2011 result
#CandidatePartyVotesVote share
1Dipak Kumar HalderTMC87,645
53.37%
2Subhra SauCPI(M)66,871
40.72%
3Krishna BaidyaBJP4,946
3.01%
4Mousumi MaitraPDS2,951
1.80%
5Md. Shamsut Touhid PurkaitIUC1,797
1.09%
Map

Diamond Harbour outlined in orange among the other West Bengal seats, coloured by the party that won each in 2026. Click any seat to open its page.

Other seats in South 24 Parganas district

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

BJPTMCINCCPI(M)AISFOthers
Lok Sabha 2024 in this segment

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

  • Abhishek BanerjeeTMC1,47,343 69.5%
  • Abhijit Das (bobby)BJP43,176 20.4%
  • Majnu LaskarAISF9,918 4.7%
  • Pratik Ur RahamanCPI(M)7,360 3.5%
  • Subrata BoseIndependent1,410 0.7%

In the assembly election AITC won this seat. In the Lok Sabha vote, AITC led here by 1,04,167 EVM votes.

Open Diamond Harbour Lok Sabha result
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FAQ

Answers use the official Election Commission of India results for Diamond Harbour.

Who won the Diamond Harbour assembly seat in 2026?

Panna Lal Halder of the All India Trinamool Congress (AITC) won Diamond Harbour in the 2026 West Bengal assembly election with 1,19,320 votes, which was 51.38% of the valid votes polled.

What was the victory margin in Diamond Harbour?

The margin was 31,266 votes (13.46% of valid votes). The runner-up was Dipak Kumar Halder of the Bharatiya Janata Party with 88,054 votes.

What was the voter turnout in Diamond Harbour in 2026?

Turnout was 94.85%: 2,32,623 of 2,45,251 registered electors voted, across 4 polling stations. That is 6.4 points higher than in 2021.

Which Lok Sabha constituency is Diamond Harbour part of?

Diamond Harbour is an assembly segment of the Diamond Harbour Lok Sabha constituency in West Bengal. In the 2024 Lok Sabha election, Abhishek Banerjee got the most EVM votes in this segment.

Is Diamond Harbour a reserved constituency?

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

When is the next assembly election in Diamond Harbour?

The West Bengal assembly elected in 2026 completes its five-year term in 2031, 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 West Bengal assembly elections of 2026 and 2021 and 2016 and 2011 (2026 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.